231494899 has 16 divisors (see below), whose sum is σ = 250181568. Its totient is φ = 213414912.

The previous prime is 231494891. The next prime is 231494911. The reversal of 231494899 is 998494132.

It is a cyclic number.

It is not a de Polignac number, because 231494899 - 2³ = 231494891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231494891) 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, 206689 + ... + 207805.

It is an arithmetic number, because the mean of its divisors is an integer number (15636348).

Almost surely, 2^231494899 is an apocalyptic number.

231494899 is a deficient number, since it is larger than the sum of its proper divisors (18686669).

231494899 is a wasteful number, since it uses less digits than its factorization.

231494899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374.

The product of its digits is 559872, while the sum is 49.

The square root of 231494899 is about 15214.9564245186. The cubic root of 231494899 is about 614.0171128788.

The spelling of 231494899 in words is "two hundred thirty-one million, four hundred ninety-four thousand, eight hundred ninety-nine".