497400157 has 2 divisors, whose sum is σ = 497400158. Its totient is φ = 497400156.

The previous prime is 497400119. The next prime is 497400181. The reversal of 497400157 is 751004794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336135556 + 161264601 = 18334^2 + 12699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497400157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497400187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248700078 + 248700079.

It is an arithmetic number, because the mean of its divisors is an integer number (248700079).

Almost surely, 2^497400157 is an apocalyptic number.

It is an amenable number.

497400157 is a deficient number, since it is larger than the sum of its proper divisors (1).

497400157 is an equidigital number, since it uses as much as digits as its factorization.

497400157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 497400157 is about 22302.4697511285. The cubic root of 497400157 is about 792.3224702269.

The spelling of 497400157 in words is "four hundred ninety-seven million, four hundred thousand, one hundred fifty-seven".