157314317 has 4 divisors (see below), whose sum is σ = 157389276. Its totient is φ = 157239360.

The previous prime is 157314307. The next prime is 157314331. The reversal of 157314317 is 713413751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 713413751 = 71 ⋅10048081.

It can be written as a sum of positive squares in 2 ways, for example, as 96255721 + 61058596 = 9811^2 + 7814^2 .

It is a cyclic number.

It is not a de Polignac number, because 157314317 - 2⁴ = 157314301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157314307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34238 + ... + 38559.

It is an arithmetic number, because the mean of its divisors is an integer number (39347319).

Almost surely, 2^157314317 is an apocalyptic number.

It is an amenable number.

157314317 is a deficient number, since it is larger than the sum of its proper divisors (74959).

157314317 is an equidigital number, since it uses as much as digits as its factorization.

157314317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74958.

The product of its digits is 8820, while the sum is 32.

The square root of 157314317 is about 12542.5004285429. The cubic root of 157314317 is about 539.8288403591.

The spelling of 157314317 in words is "one hundred fifty-seven million, three hundred fourteen thousand, three hundred seventeen".