23140325 has 18 divisors (see below), whose sum is σ = 31076694. Its totient is φ = 17085120.

The previous prime is 23140319. The next prime is 23140357. The reversal of 23140325 is 52304132.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 6240004 + 16900321 = 2498^2 + 4111^2 .

It is not a de Polignac number, because 23140325 - 2²⁴ = 6363109 is a prime.

It is a super-2 number, since 2×23140325² = 1070949282211250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23140297 and 23140306.

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 17 ways as a sum of consecutive naturals, for example, 1487 + ... + 6963.

It is an arithmetic number, because the mean of its divisors is an integer number (1726483).

Almost surely, 2^23140325 is an apocalyptic number.

23140325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23140325 is a deficient number, since it is larger than the sum of its proper divisors (7936369).

23140325 is a wasteful number, since it uses less digits than its factorization.

23140325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513 (or 5495 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23140325 is about 4810.4391691404. The cubic root of 23140325 is about 284.9638817469.

Adding to 23140325 its reverse (52304132), we get a palindrome (75444457).

The spelling of 23140325 in words is "twenty-three million, one hundred forty thousand, three hundred twenty-five".