12299725 has 12 divisors (see below), whose sum is σ = 15665044. Its totient is φ = 9573120.

The previous prime is 12299719. The next prime is 12299731. The reversal of 12299725 is 52799221.

It is an interprime number because it is at equal distance from previous prime (12299719) and next prime (12299731).

It can be written as a sum of positive squares in 6 ways, for example, as 915849 + 11383876 = 957^2 + 3374^2 .

It is not a de Polignac number, because 12299725 - 2⁷ = 12299597 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

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, 5724 + ... + 7573.

Almost surely, 2^12299725 is an apocalyptic number.

It is an amenable number.

12299725 is a deficient number, since it is larger than the sum of its proper divisors (3365319).

12299725 is a wasteful number, since it uses less digits than its factorization.

12299725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13344 (or 13339 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 12299725 is about 3507.0963773469. The cubic root of 12299725 is about 230.8333036473.

The spelling of 12299725 in words is "twelve million, two hundred ninety-nine thousand, seven hundred twenty-five".