188460231 has 32 divisors (see below), whose sum is σ = 264552960. Its totient is φ = 119232000.

The previous prime is 188460179. The next prime is 188460257. The reversal of 188460231 is 132064881.

It is a de Polignac number, because none of the positive numbers 2^k-188460231 is a prime.

It is a super-2 number, since 2×188460231² = 71034517337146722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188460192 and 188460201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188460331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1248006 + ... + 1248156.

It is an arithmetic number, because the mean of its divisors is an integer number (8267280).

Almost surely, 2^188460231 is an apocalyptic number.

188460231 is a deficient number, since it is larger than the sum of its proper divisors (76092729).

188460231 is a wasteful number, since it uses less digits than its factorization.

188460231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 188460231 is about 13728.0818397910. The cubic root of 188460231 is about 573.3325159609.

The spelling of 188460231 in words is "one hundred eighty-eight million, four hundred sixty thousand, two hundred thirty-one".