8151025 has 9 divisors (see below), whose sum is σ = 10125003. Its totient is φ = 6509400.

The previous prime is 8151023. The next prime is 8151043. The reversal of 8151025 is 5201518.

8151025 = 379² + 380² + ... + 428².

The square root of 8151025 is 2855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2934369 + 5216656 = 1713^2 + 2284^2 .

It is not a de Polignac number, because 8151025 - 2¹ = 8151023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8150987 and 8151005.

It is not an unprimeable number, because it can be changed into a prime (8151023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13990 + ... + 14560.

Almost surely, 2^8151025 is an apocalyptic number.

8151025 is the 2855-th square number.

8151025 is the 1428-th centered octagonal number.

It is an amenable number.

8151025 is a deficient number, since it is larger than the sum of its proper divisors (1973978).

8151025 is an frugal number, since it uses more digits than its factorization.

8151025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The cubic root of 8151025 is about 201.2507040599.

Multiplying 8151025 by its product of nonzero digits (400), we get a square (3260410000 = 57100²).

The spelling of 8151025 in words is "eight million, one hundred fifty-one thousand, twenty-five".