120727881 has 16 divisors (see below), whose sum is σ = 188270400. Its totient is φ = 76248864.

The previous prime is 120727861. The next prime is 120727909. The reversal of 120727881 is 188727021.

It is a happy number.

It is not a de Polignac number, because 120727881 - 2⁷ = 120727753 is a prime.

It is a super-2 number, since 2×120727881² = 29150442501500322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (120727861) 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, 117156 + ... + 118181.

It is an arithmetic number, because the mean of its divisors is an integer number (11766900).

Almost surely, 2^120727881 is an apocalyptic number.

It is an amenable number.

120727881 is a deficient number, since it is larger than the sum of its proper divisors (67542519).

120727881 is a wasteful number, since it uses less digits than its factorization.

120727881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235365 (or 235359 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 120727881 is about 10987.6239924744. The cubic root of 120727881 is about 494.2376879643.

The spelling of 120727881 in words is "one hundred twenty million, seven hundred twenty-seven thousand, eight hundred eighty-one".