120857385 has 48 divisors (see below), whose sum is σ = 222747840. Its totient is φ = 55486080.

The previous prime is 120857377. The next prime is 120857393. The reversal of 120857385 is 583758021.

It is an interprime number because it is at equal distance from previous prime (120857377) and next prime (120857393).

It is not a de Polignac number, because 120857385 - 2³ = 120857377 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58551 + ... + 60579.

It is an arithmetic number, because the mean of its divisors is an integer number (4640580).

Almost surely, 2^120857385 is an apocalyptic number.

120857385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120857385 is a deficient number, since it is larger than the sum of its proper divisors (101890455).

120857385 is a wasteful number, since it uses less digits than its factorization.

120857385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 120857385 is about 10993.5155887459. The cubic root of 120857385 is about 494.4143466462.

The spelling of 120857385 in words is "one hundred twenty million, eight hundred fifty-seven thousand, three hundred eighty-five".