140121324 has 36 divisors (see below), whose sum is σ = 404795664. Its totient is φ = 40034592.

The previous prime is 140121299. The next prime is 140121341. The reversal of 140121324 is 423121041.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140121297 and 140121306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277767 + ... + 278270.

It is an arithmetic number, because the mean of its divisors is an integer number (11244324).

Almost surely, 2^140121324 is an apocalyptic number.

140121324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140121324 is an abundant number, since it is smaller than the sum of its proper divisors (264674340).

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

140121324 is a wasteful number, since it uses less digits than its factorization.

140121324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556054 (or 556049 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140121324 is about 11837.2853306829. The cubic root of 140121324 is about 519.3993607240.

Adding to 140121324 its reverse (423121041), we get a palindrome (563242365).

The spelling of 140121324 in words is "one hundred forty million, one hundred twenty-one thousand, three hundred twenty-four".