497023157 has 2 divisors, whose sum is σ = 497023158. Its totient is φ = 497023156.

The previous prime is 497023151. The next prime is 497023159. The reversal of 497023157 is 751320794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393268561 + 103754596 = 19831^2 + 10186^2 .

It is a cyclic number.

It is not a de Polignac number, because 497023157 - 2⁸ = 497022901 is a prime.

Together with 497023159, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 497023157 parts by 31528 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 497023157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497023151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248511578 + 248511579.

It is an arithmetic number, because the mean of its divisors is an integer number (248511579).

Almost surely, 2^497023157 is an apocalyptic number.

It is an amenable number.

497023157 is a deficient number, since it is larger than the sum of its proper divisors (1).

497023157 is an equidigital number, since it uses as much as digits as its factorization.

497023157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 497023157 is about 22294.0161702642. The cubic root of 497023157 is about 792.1222417215.

The spelling of 497023157 in words is "four hundred ninety-seven million, twenty-three thousand, one hundred fifty-seven".