188949231 has 12 divisors (see below), whose sum is σ = 273274560. Its totient is φ = 125805600.

The previous prime is 188949223. The next prime is 188949263. The reversal of 188949231 is 132949881.

It is not a de Polignac number, because 188949231 - 2³ = 188949223 is a prime.

It is a super-2 number, since 2×188949231² = 71403623790982722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188949031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5695 + ... + 20256.

It is an arithmetic number, because the mean of its divisors is an integer number (22772880).

Almost surely, 2^188949231 is an apocalyptic number.

188949231 is a deficient number, since it is larger than the sum of its proper divisors (84325329).

188949231 is a wasteful number, since it uses less digits than its factorization.

188949231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26766 (or 26763 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 188949231 is about 13745.8805101747. The cubic root of 188949231 is about 573.8279652548.

The spelling of 188949231 in words is "one hundred eighty-eight million, nine hundred forty-nine thousand, two hundred thirty-one".