8151564 has 12 divisors (see below), whose sum is σ = 19020344. Its totient is φ = 2717184.

The previous prime is 8151547. The next prime is 8151569. The reversal of 8151564 is 4651518.

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

It is not an unprimeable number, because it can be changed into a prime (8151569) 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, 339637 + ... + 339660.

Almost surely, 2^8151564 is an apocalyptic number.

It is an amenable number.

8151564 is an abundant number, since it is smaller than the sum of its proper divisors (10868780).

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

8151564 is a wasteful number, since it uses less digits than its factorization.

8151564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679304 (or 679302 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 8151564 is about 2855.0943942364. The cubic root of 8151564 is about 201.2551399739.

The spelling of 8151564 in words is "eight million, one hundred fifty-one thousand, five hundred sixty-four".