8151872 has 14 divisors (see below), whose sum is σ = 16176498. Its totient is φ = 4075904.

The previous prime is 8151859. The next prime is 8151881. The reversal of 8151872 is 2781518.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6031936 + 2119936 = 2456^2 + 1456^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63623 + ... + 63750.

Almost surely, 2^8151872 is an apocalyptic number.

It is an amenable number.

8151872 is a deficient number, since it is larger than the sum of its proper divisors (8024626).

8151872 is a wasteful number, since it uses less digits than its factorization.

8151872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127385 (or 127375 counting only the distinct ones).

The product of its digits is 4480, while the sum is 32.

The square root of 8151872 is about 2855.1483323989. The cubic root of 8151872 is about 201.2576746941.

The spelling of 8151872 in words is "eight million, one hundred fifty-one thousand, eight hundred seventy-two".