478157 has 2 divisors, whose sum is σ = 478158. Its totient is φ = 478156.

The previous prime is 478139. The next prime is 478169. The reversal of 478157 is 751874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477481 + 676 = 691^2 + 26^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239078 + 239079.

It is an arithmetic number, because the mean of its divisors is an integer number (239079).

2⁴⁷⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

478157 is a deficient number, since it is larger than the sum of its proper divisors (1).

478157 is an equidigital number, since it uses as much as digits as its factorization.

478157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 32.

The square root of 478157 is about 691.4889731586. The cubic root of 478157 is about 78.1970145576.

The spelling of 478157 in words is "four hundred seventy-eight thousand, one hundred fifty-seven".