231670633 has 2 divisors, whose sum is σ = 231670634. Its totient is φ = 231670632.

The previous prime is 231670631. The next prime is 231670709. The reversal of 231670633 is 336076132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177102864 + 54567769 = 13308^2 + 7387^2 .

It is a cyclic number.

It is not a de Polignac number, because 231670633 - 2¹ = 231670631 is a prime.

Together with 231670631, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 231670595 and 231670604.

It is not a weakly prime, because it can be changed into another prime (231670631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115835316 + 115835317.

It is an arithmetic number, because the mean of its divisors is an integer number (115835317).

Almost surely, 2^231670633 is an apocalyptic number.

It is an amenable number.

231670633 is a deficient number, since it is larger than the sum of its proper divisors (1).

231670633 is an equidigital number, since it uses as much as digits as its factorization.

231670633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 231670633 is about 15220.7303701235. The cubic root of 231670633 is about 614.1724458776.

The spelling of 231670633 in words is "two hundred thirty-one million, six hundred seventy thousand, six hundred thirty-three".