231551104 has 16 divisors (see below), whose sum is σ = 461293470. Its totient is φ = 115775488.

The previous prime is 231551063. The next prime is 231551141. The reversal of 231551104 is 401155132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 210830400 + 20720704 = 14520^2 + 4552^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 904369 + ... + 904624.

Almost surely, 2^231551104 is an apocalyptic number.

It is an amenable number.

231551104 is a deficient number, since it is larger than the sum of its proper divisors (229742366).

231551104 is an equidigital number, since it uses as much as digits as its factorization.

231551104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809007 (or 1808995 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 231551104 is about 15216.8033436724. The cubic root of 231551104 is about 614.0668015751.

The spelling of 231551104 in words is "two hundred thirty-one million, five hundred fifty-one thousand, one hundred four".