230913431 has 24 divisors (see below), whose sum is σ = 286567200. Its totient is φ = 185347008.

The previous prime is 230913413. The next prime is 230913439. The reversal of 230913431 is 134319032.

It is a happy number.

It is not a de Polignac number, because 230913431 - 2⁶ = 230913367 is a prime.

It is a super-2 number, since 2×230913431² = 106642025232383522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230913431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230913439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1160270 + ... + 1160468.

It is an arithmetic number, because the mean of its divisors is an integer number (11940300).

Almost surely, 2^230913431 is an apocalyptic number.

230913431 is a deficient number, since it is larger than the sum of its proper divisors (55653769).

230913431 is an frugal number, since it uses more digits than its factorization.

230913431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 230913431 is about 15195.8359756876. The cubic root of 230913431 is about 613.5025865661.

The spelling of 230913431 in words is "two hundred thirty million, nine hundred thirteen thousand, four hundred thirty-one".