476509157 has 2 divisors, whose sum is σ = 476509158. Its totient is φ = 476509156.

The previous prime is 476509141. The next prime is 476509169. The reversal of 476509157 is 751905674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406385281 + 70123876 = 20159^2 + 8374^2 .

It is a cyclic number.

It is not a de Polignac number, because 476509157 - 2⁴ = 476509141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476509177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238254578 + 238254579.

It is an arithmetic number, because the mean of its divisors is an integer number (238254579).

Almost surely, 2^476509157 is an apocalyptic number.

It is an amenable number.

476509157 is a deficient number, since it is larger than the sum of its proper divisors (1).

476509157 is an equidigital number, since it uses as much as digits as its factorization.

476509157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 476509157 is about 21829.0896970075. The cubic root of 476509157 is about 781.0708265207.

The spelling of 476509157 in words is "four hundred seventy-six million, five hundred nine thousand, one hundred fifty-seven".