65863157 has 2 divisors, whose sum is σ = 65863158. Its totient is φ = 65863156.

The previous prime is 65863129. The next prime is 65863159. The reversal of 65863157 is 75136856.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46158436 + 19704721 = 6794^2 + 4439^2 .

It is a cyclic number.

It is not a de Polignac number, because 65863157 - 2¹⁸ = 65601013 is a prime.

Together with 65863159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65863159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32931578 + 32931579.

It is an arithmetic number, because the mean of its divisors is an integer number (32931579).

Almost surely, 2^65863157 is an apocalyptic number.

It is an amenable number.

65863157 is a deficient number, since it is larger than the sum of its proper divisors (1).

65863157 is an equidigital number, since it uses as much as digits as its factorization.

65863157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 65863157 is about 8115.6119301011. The cubic root of 65863157 is about 403.8445080963.

The spelling of 65863157 in words is "sixty-five million, eight hundred sixty-three thousand, one hundred fifty-seven".