140323120 has 80 divisors (see below), whose sum is σ = 377475840. Its totient is φ = 47515392.

The previous prime is 140323111. The next prime is 140323123. The reversal of 140323120 is 21323041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 140323094 and 140323103.

It is not an unprimeable number, because it can be changed into a prime (140323123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44971 + ... + 47989.

It is an arithmetic number, because the mean of its divisors is an integer number (4718448).

Almost surely, 2^140323120 is an apocalyptic number.

140323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188737920).

140323120 is an abundant number, since it is smaller than the sum of its proper divisors (237152720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140323120 is a wasteful number, since it uses less digits than its factorization.

140323120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140323120 is about 11845.8060088793. The cubic root of 140323120 is about 519.6485791280.

Adding to 140323120 its reverse (21323041), we get a palindrome (161646161).

The spelling of 140323120 in words is "one hundred forty million, three hundred twenty-three thousand, one hundred twenty".