230987913 has 16 divisors (see below), whose sum is σ = 342375936. Its totient is φ = 137560320.

The previous prime is 230987899. The next prime is 230987917. The reversal of 230987913 is 319789032.

It is not a de Polignac number, because 230987913 - 2⁵ = 230987881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230987917) 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, 94320 + ... + 96737.

It is an arithmetic number, because the mean of its divisors is an integer number (21398496).

Almost surely, 2^230987913 is an apocalyptic number.

It is an amenable number.

230987913 is a deficient number, since it is larger than the sum of its proper divisors (111388023).

230987913 is a wasteful number, since it uses less digits than its factorization.

230987913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191104.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 230987913 is about 15198.2865152622. The cubic root of 230987913 is about 613.5685420013.

The spelling of 230987913 in words is "two hundred thirty million, nine hundred eighty-seven thousand, nine hundred thirteen".