7149025 has 12 divisors (see below), whose sum is σ = 9547132. Its totient is φ = 5279040.

The previous prime is 7149019. The next prime is 7149041. The reversal of 7149025 is 5209417.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 471969 + 6677056 = 687^2 + 2584^2 .

It is not a de Polignac number, because 7149025 - 2⁹ = 7148513 is a prime.

It is a super-2 number, since 2×7149025² = 102217116901250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7148984 and 7149002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10674 + ... + 11323.

Almost surely, 2^7149025 is an apocalyptic number.

It is an amenable number.

7149025 is a deficient number, since it is larger than the sum of its proper divisors (2398107).

7149025 is a wasteful number, since it uses less digits than its factorization.

7149025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22020 (or 22015 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7149025 is about 2673.7660705454. The cubic root of 7149025 is about 192.6410951855.

The spelling of 7149025 in words is "seven million, one hundred forty-nine thousand, twenty-five".