8157516 has 12 divisors (see below), whose sum is σ = 19034232. Its totient is φ = 2719168.

The previous prime is 8157509. The next prime is 8157521. The reversal of 8157516 is 6157518.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339885 + ... + 339908.

It is an arithmetic number, because the mean of its divisors is an integer number (1586186).

Almost surely, 2^8157516 is an apocalyptic number.

It is an amenable number.

8157516 is an abundant number, since it is smaller than the sum of its proper divisors (10876716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8157516 is a wasteful number, since it uses less digits than its factorization.

8157516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679800 (or 679798 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

The square root of 8157516 is about 2856.1365513574. The cubic root of 8157516 is about 201.3041113191.

The spelling of 8157516 in words is "eight million, one hundred fifty-seven thousand, five hundred sixteen".