231261304 has 8 divisors (see below), whose sum is σ = 433614960. Its totient is φ = 115630648.

The previous prime is 231261269. The next prime is 231261307. The reversal of 231261304 is 403162132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231261307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14453824 + ... + 14453839.

It is an arithmetic number, because the mean of its divisors is an integer number (54201870).

Almost surely, 2^231261304 is an apocalyptic number.

It is an amenable number.

231261304 is a deficient number, since it is larger than the sum of its proper divisors (202353656).

231261304 is a wasteful number, since it uses less digits than its factorization.

231261304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28907669 (or 28907665 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 231261304 is about 15207.2779944341. The cubic root of 231261304 is about 613.8105142319.

The spelling of 231261304 in words is "two hundred thirty-one million, two hundred sixty-one thousand, three hundred four".