474438157 has 2 divisors, whose sum is σ = 474438158. Its totient is φ = 474438156.

The previous prime is 474438131. The next prime is 474438187. The reversal of 474438157 is 751834474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340550116 + 133888041 = 18454^2 + 11571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474438157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474438127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237219078 + 237219079.

It is an arithmetic number, because the mean of its divisors is an integer number (237219079).

Almost surely, 2^474438157 is an apocalyptic number.

It is an amenable number.

474438157 is a deficient number, since it is larger than the sum of its proper divisors (1).

474438157 is an equidigital number, since it uses as much as digits as its factorization.

474438157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 43.

The square root of 474438157 is about 21781.6013414992. The cubic root of 474438157 is about 779.9376221210.

The spelling of 474438157 in words is "four hundred seventy-four million, four hundred thirty-eight thousand, one hundred fifty-seven".