120442156 has 12 divisors (see below), whose sum is σ = 211553440. Its totient is φ = 59998320.

The previous prime is 120442111. The next prime is 120442171. The reversal of 120442156 is 651244021.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 120442156.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54471 + ... + 56638.

Almost surely, 2^120442156 is an apocalyptic number.

It is an amenable number.

120442156 is a deficient number, since it is larger than the sum of its proper divisors (91111284).

120442156 is a wasteful number, since it uses less digits than its factorization.

120442156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111384 (or 111382 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 120442156 is about 10974.6141617826. The cubic root of 120442156 is about 493.8474781424.

Adding to 120442156 its reverse (651244021), we get a palindrome (771686177).

The spelling of 120442156 in words is "one hundred twenty million, four hundred forty-two thousand, one hundred fifty-six".