16315157 has 4 divisors (see below), whose sum is σ = 16662336. Its totient is φ = 15967980.

The previous prime is 16315151. The next prime is 16315163. The reversal of 16315157 is 75151361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75151361 = 127 ⋅591743.

It is an interprime number because it is at equal distance from previous prime (16315151) and next prime (16315163).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16315157 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 (16315151) 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, 173519 + ... + 173612.

It is an arithmetic number, because the mean of its divisors is an integer number (4165584).

Almost surely, 2^16315157 is an apocalyptic number.

It is an amenable number.

16315157 is a deficient number, since it is larger than the sum of its proper divisors (347179).

16315157 is an equidigital number, since it uses as much as digits as its factorization.

16315157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347178.

The product of its digits is 3150, while the sum is 29.

The square root of 16315157 is about 4039.2025203003. The cubic root of 16315157 is about 253.6279350138.

The spelling of 16315157 in words is "sixteen million, three hundred fifteen thousand, one hundred fifty-seven".