118885531 has 8 divisors (see below), whose sum is σ = 121420800. Its totient is φ = 116367720.

The previous prime is 118885499. The next prime is 118885549. The reversal of 118885531 is 135588811.

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 118885531 - 2⁵ = 118885499 is a prime.

It is a super-2 number, since 2×118885531² = 28267538962303922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118885561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9886 + ... + 18316.

It is an arithmetic number, because the mean of its divisors is an integer number (15177600).

Almost surely, 2^118885531 is an apocalyptic number.

118885531 is a deficient number, since it is larger than the sum of its proper divisors (2535269).

118885531 is an equidigital number, since it uses as much as digits as its factorization.

118885531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729.

The product of its digits is 38400, while the sum is 40.

The square root of 118885531 is about 10903.4641742888. The cubic root of 118885531 is about 491.7107094256.

The spelling of 118885531 in words is "one hundred eighteen million, eight hundred eighty-five thousand, five hundred thirty-one".