120172532 has 12 divisors (see below), whose sum is σ = 211562400. Its totient is φ = 59726136.

The previous prime is 120172519. The next prime is 120172553. The reversal of 120172532 is 235271021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120172498 and 120172507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89282 + ... + 90617.

It is an arithmetic number, because the mean of its divisors is an integer number (17630200).

Almost surely, 2^120172532 is an apocalyptic number.

It is an amenable number.

120172532 is a deficient number, since it is larger than the sum of its proper divisors (91389868).

120172532 is a wasteful number, since it uses less digits than its factorization.

120172532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180070 (or 180068 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 120172532 is about 10962.3232939008. The cubic root of 120172532 is about 493.4786908332.

The spelling of 120172532 in words is "one hundred twenty million, one hundred seventy-two thousand, five hundred thirty-two".