120857562 has 32 divisors (see below), whose sum is σ = 306940800. Its totient is φ = 34530624.

The previous prime is 120857557. The next prime is 120857567. The reversal of 120857562 is 265758021.

It is a happy number.

120857562 is a `hidden beast` number, since 1 + 20 + 8 + 575 + 62 = 666.

It is an interprime number because it is at equal distance from previous prime (120857557) and next prime (120857567).

It is not an unprimeable number, because it can be changed into a prime (120857567) 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, 159487 + ... + 160242.

It is an arithmetic number, because the mean of its divisors is an integer number (9591900).

Almost surely, 2^120857562 is an apocalyptic number.

120857562 is an abundant number, since it is smaller than the sum of its proper divisors (186083238).

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

120857562 is a wasteful number, since it uses less digits than its factorization.

120857562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319747 (or 319741 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 120857562 is about 10993.5236389431. The cubic root of 120857562 is about 494.4145880086.

The spelling of 120857562 in words is "one hundred twenty million, eight hundred fifty-seven thousand, five hundred sixty-two".