63907157 has 2 divisors, whose sum is σ = 63907158. Its totient is φ = 63907156.

The previous prime is 63907153. The next prime is 63907183. The reversal of 63907157 is 75170936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63856081 + 51076 = 7991^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 63907157 - 2² = 63907153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63907157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63907153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31953578 + 31953579.

It is an arithmetic number, because the mean of its divisors is an integer number (31953579).

Almost surely, 2^63907157 is an apocalyptic number.

It is an amenable number.

63907157 is a deficient number, since it is larger than the sum of its proper divisors (1).

63907157 is an equidigital number, since it uses as much as digits as its factorization.

63907157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 63907157 is about 7994.1952065233. The cubic root of 63907157 is about 399.8064834768.

The spelling of 63907157 in words is "sixty-three million, nine hundred seven thousand, one hundred fifty-seven".