231586601 has 2 divisors, whose sum is σ = 231586602. Its totient is φ = 231586600.

The previous prime is 231586591. The next prime is 231586603. The reversal of 231586601 is 106685132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156850576 + 74736025 = 12524^2 + 8645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231586601 is a prime.

Together with 231586603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231586603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115793300 + 115793301.

It is an arithmetic number, because the mean of its divisors is an integer number (115793301).

Almost surely, 2^231586601 is an apocalyptic number.

It is an amenable number.

231586601 is a deficient number, since it is larger than the sum of its proper divisors (1).

231586601 is an equidigital number, since it uses as much as digits as its factorization.

231586601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 231586601 is about 15217.9696740400. The cubic root of 231586601 is about 614.0981789761.

The spelling of 231586601 in words is "two hundred thirty-one million, five hundred eighty-six thousand, six hundred one".