189031113 has 12 divisors (see below), whose sum is σ = 280425028. Its totient is φ = 122614560.

The previous prime is 189031111. The next prime is 189031163. The reversal of 189031113 is 311130981.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111450249 + 77580864 = 10557^2 + 8808^2 .

It is not a de Polignac number, because 189031113 - 2¹ = 189031111 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189031111) 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, 283498 + ... + 284163.

Almost surely, 2^189031113 is an apocalyptic number.

It is an amenable number.

189031113 is a deficient number, since it is larger than the sum of its proper divisors (91393915).

189031113 is a wasteful number, since it uses less digits than its factorization.

189031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567704 (or 567701 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 189031113 is about 13748.8586071717. The cubic root of 189031113 is about 573.9108435948.

The spelling of 189031113 in words is "one hundred eighty-nine million, thirty-one thousand, one hundred thirteen".