15140425 has 6 divisors (see below), whose sum is σ = 18774158. Its totient is φ = 12112320.

The previous prime is 15140381. The next prime is 15140449. The reversal of 15140425 is 52404151.

It can be written as a sum of positive squares in 3 ways, for example, as 2064969 + 13075456 = 1437^2 + 3616^2 .

It is not a de Polignac number, because 15140425 - 2¹⁵ = 15107657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15140396 and 15140405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302784 + ... + 302833.

Almost surely, 2^15140425 is an apocalyptic number.

It is an amenable number.

15140425 is a deficient number, since it is larger than the sum of its proper divisors (3633733).

15140425 is an equidigital number, since it uses as much as digits as its factorization.

15140425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605627 (or 605622 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 15140425 is about 3891.0699042808. The cubic root of 15140425 is about 247.3884134604.

Adding to 15140425 its reverse (52404151), we get a palindrome (67544576).

The spelling of 15140425 in words is "fifteen million, one hundred forty thousand, four hundred twenty-five".