144323140 has 48 divisors (see below), whose sum is σ = 337664880. Its totient is φ = 51448320.

The previous prime is 144323131. The next prime is 144323141. The reversal of 144323140 is 41323441.

144323140 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 8 ways, for example, as 7573504 + 136749636 = 2752^2 + 11694^2 .

It is not an unprimeable number, because it can be changed into a prime (144323141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031 + ... + 17110.

It is an arithmetic number, because the mean of its divisors is an integer number (7034685).

Almost surely, 2^144323140 is an apocalyptic number.

144323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144323140 is an abundant number, since it is smaller than the sum of its proper divisors (193341740).

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

144323140 is a wasteful number, since it uses less digits than its factorization.

144323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19192 (or 19190 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 144323140 is about 12013.4566216389. The cubic root of 144323140 is about 524.5400537023.

Adding to 144323140 its reverse (41323441), we get a palindrome (185646581).

The spelling of 144323140 in words is "one hundred forty-four million, three hundred twenty-three thousand, one hundred forty".