231883089 has 16 divisors (see below), whose sum is σ = 314181504. Its totient is φ = 152096000.

The previous prime is 231883081. The next prime is 231883103. The reversal of 231883089 is 980388132.

It is a cyclic number.

It is not a de Polignac number, because 231883089 - 2³ = 231883081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231883089.

It is not an unprimeable number, because it can be changed into a prime (231883081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148537 + ... + 150089.

It is an arithmetic number, because the mean of its divisors is an integer number (19636344).

Almost surely, 2^231883089 is an apocalyptic number.

It is an amenable number.

231883089 is a deficient number, since it is larger than the sum of its proper divisors (82298415).

231883089 is a wasteful number, since it uses less digits than its factorization.

231883089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 231883089 is about 15227.7079365215. The cubic root of 231883089 is about 614.3601329578.

The spelling of 231883089 in words is "two hundred thirty-one million, eight hundred eighty-three thousand, eighty-nine".