7148725 has 6 divisors (see below), whose sum is σ = 8864450. Its totient is φ = 5718960.

The previous prime is 7148717. The next prime is 7148737. The reversal of 7148725 is 5278417.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 707281 + 6441444 = 841^2 + 2538^2 .

It is not a de Polignac number, because 7148725 - 2³ = 7148717 is a prime.

It is a super-2 number, since 2×7148725² = 102208538251250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142950 + ... + 142999.

Almost surely, 2^7148725 is an apocalyptic number.

It is an amenable number.

7148725 is a deficient number, since it is larger than the sum of its proper divisors (1715725).

7148725 is a wasteful number, since it uses less digits than its factorization.

7148725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285959 (or 285954 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 7148725 is about 2673.7099693123. The cubic root of 7148725 is about 192.6384004993.

The spelling of 7148725 in words is "seven million, one hundred forty-eight thousand, seven hundred twenty-five".