231633049 has 2 divisors, whose sum is σ = 231633050. Its totient is φ = 231633048.

The previous prime is 231633037. The next prime is 231633079. The reversal of 231633049 is 940336132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117570649 + 114062400 = 10843^2 + 10680^2 .

It is a cyclic number.

It is not a de Polignac number, because 231633049 - 2⁹ = 231632537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231633049.

It is not a weakly prime, because it can be changed into another prime (231633029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115816524 + 115816525.

It is an arithmetic number, because the mean of its divisors is an integer number (115816525).

Almost surely, 2^231633049 is an apocalyptic number.

It is an amenable number.

231633049 is a deficient number, since it is larger than the sum of its proper divisors (1).

231633049 is an equidigital number, since it uses as much as digits as its factorization.

231633049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 231633049 is about 15219.4956880969. The cubic root of 231633049 is about 614.1392316181.

The spelling of 231633049 in words is "two hundred thirty-one million, six hundred thirty-three thousand, forty-nine".