231850664 has 8 divisors (see below), whose sum is σ = 434720010. Its totient is φ = 115925328.

The previous prime is 231850657. The next prime is 231850667. The reversal of 231850664 is 466058132.

It can be written as a sum of positive squares in only one way, i.e., 204204100 + 27646564 = 14290^2 + 5258^2 .

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

It is not an unprimeable number, because it can be changed into a prime (231850667) 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, 14490659 + ... + 14490674.

Almost surely, 2^231850664 is an apocalyptic number.

It is an amenable number.

231850664 is a deficient number, since it is larger than the sum of its proper divisors (202869346).

231850664 is a wasteful number, since it uses less digits than its factorization.

231850664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28981339 (or 28981335 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 231850664 is about 15226.6432282365. The cubic root of 231850664 is about 614.3314956016.

The spelling of 231850664 in words is "two hundred thirty-one million, eight hundred fifty thousand, six hundred sixty-four".