120855537 has 32 divisors (see below), whose sum is σ = 197199360. Its totient is φ = 72542160.

The previous prime is 120855479. The next prime is 120855563. The reversal of 120855537 is 735558021.

120855537 is a `hidden beast` number, since 1 + 20 + 85 + 553 + 7 = 666.

It is not a de Polignac number, because 120855537 - 2¹⁶ = 120790001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120855587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29878 + ... + 33680.

It is an arithmetic number, because the mean of its divisors is an integer number (6162480).

Almost surely, 2^120855537 is an apocalyptic number.

It is an amenable number.

120855537 is a deficient number, since it is larger than the sum of its proper divisors (76343823).

120855537 is a wasteful number, since it uses less digits than its factorization.

120855537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930 (or 3924 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 120855537 is about 10993.4315388781. The cubic root of 120855537 is about 494.4118266447.

The spelling of 120855537 in words is "one hundred twenty million, eight hundred fifty-five thousand, five hundred thirty-seven".