654113657 has 2 divisors, whose sum is σ = 654113658. Its totient is φ = 654113656.

The previous prime is 654113623. The next prime is 654113659. The reversal of 654113657 is 756311456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646990096 + 7123561 = 25436^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 654113657 - 2⁸ = 654113401 is a prime.

Together with 654113659, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654113657.

It is not a weakly prime, because it can be changed into another prime (654113659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327056828 + 327056829.

It is an arithmetic number, because the mean of its divisors is an integer number (327056829).

Almost surely, 2^654113657 is an apocalyptic number.

It is an amenable number.

654113657 is a deficient number, since it is larger than the sum of its proper divisors (1).

654113657 is an equidigital number, since it uses as much as digits as its factorization.

654113657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 654113657 is about 25575.6457787482. The cubic root of 654113657 is about 868.0626538654.

The spelling of 654113657 in words is "six hundred fifty-four million, one hundred thirteen thousand, six hundred fifty-seven".