495331157 has 2 divisors, whose sum is σ = 495331158. Its totient is φ = 495331156.

The previous prime is 495331139. The next prime is 495331211. The reversal of 495331157 is 751133594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 353101681 + 142229476 = 18791^2 + 11926^2 .

It is a cyclic number.

It is not a de Polignac number, because 495331157 - 2¹² = 495327061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 495331157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495331357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247665578 + 247665579.

It is an arithmetic number, because the mean of its divisors is an integer number (247665579).

Almost surely, 2^495331157 is an apocalyptic number.

It is an amenable number.

495331157 is a deficient number, since it is larger than the sum of its proper divisors (1).

495331157 is an equidigital number, since it uses as much as digits as its factorization.

495331157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 495331157 is about 22256.0364171161. The cubic root of 495331157 is about 791.2223543437. Note that the first 3 decimals are identical.

The spelling of 495331157 in words is "four hundred ninety-five million, three hundred thirty-one thousand, one hundred fifty-seven".