495321157 has 2 divisors, whose sum is σ = 495321158. Its totient is φ = 495321156.

The previous prime is 495321139. The next prime is 495321181. The reversal of 495321157 is 751123594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415915236 + 79405921 = 20394^2 + 8911^2 .

It is a cyclic number.

It is not a de Polignac number, because 495321157 - 2¹⁵ = 495288389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495321137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247660578 + 247660579.

It is an arithmetic number, because the mean of its divisors is an integer number (247660579).

Almost surely, 2^495321157 is an apocalyptic number.

It is an amenable number.

495321157 is a deficient number, since it is larger than the sum of its proper divisors (1).

495321157 is an equidigital number, since it uses as much as digits as its factorization.

495321157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 495321157 is about 22255.8117578308. The cubic root of 495321157 is about 791.2170297734.

The spelling of 495321157 in words is "four hundred ninety-five million, three hundred twenty-one thousand, one hundred fifty-seven".