15132725 has 6 divisors (see below), whose sum is σ = 18764610. Its totient is φ = 12106160.

The previous prime is 15132701. The next prime is 15132749. The reversal of 15132725 is 52723151.

It is an interprime number because it is at equal distance from previous prime (15132701) and next prime (15132749).

It can be written as a sum of positive squares in 3 ways, for example, as 5354596 + 9778129 = 2314^2 + 3127^2 .

It is not a de Polignac number, because 15132725 - 2⁶ = 15132661 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15132694 and 15132703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302630 + ... + 302679.

It is an arithmetic number, because the mean of its divisors is an integer number (3127435).

Almost surely, 2^15132725 is an apocalyptic number.

It is an amenable number.

15132725 is a deficient number, since it is larger than the sum of its proper divisors (3631885).

15132725 is an equidigital number, since it uses as much as digits as its factorization.

15132725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605319 (or 605314 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 15132725 is about 3890.0803333607. The cubic root of 15132725 is about 247.3464680549.

Adding to 15132725 its reverse (52723151), we get a palindrome (67855876).

The spelling of 15132725 in words is "fifteen million, one hundred thirty-two thousand, seven hundred twenty-five".