118920531 has 8 divisors (see below), whose sum is σ = 160131024. Its totient is φ = 78495200.

The previous prime is 118920523. The next prime is 118920547. The reversal of 118920531 is 135029811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118920531 - 2³ = 118920523 is a prime.

It is a super-2 number, since 2×118920531² = 28284185386643922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118920551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195936 + ... + 196541.

It is an arithmetic number, because the mean of its divisors is an integer number (20016378).

Almost surely, 2^118920531 is an apocalyptic number.

118920531 is a deficient number, since it is larger than the sum of its proper divisors (41210493).

118920531 is a wasteful number, since it uses less digits than its factorization.

118920531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392581.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 118920531 is about 10905.0690506755. The cubic root of 118920531 is about 491.7589580395.

The spelling of 118920531 in words is "one hundred eighteen million, nine hundred twenty thousand, five hundred thirty-one".