16140325 has 12 divisors (see below), whose sum is σ = 20556100. Its totient is φ = 12562560.

The previous prime is 16140307. The next prime is 16140337. The reversal of 16140325 is 52304161.

It can be written as a sum of positive squares in 6 ways, for example, as 2934369 + 13205956 = 1713^2 + 3634^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16140325 is a prime.

It is a super-2 number, since 2×16140325² = 521020182211250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16140296 and 16140305.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 7800 + ... + 9649.

Almost surely, 2^16140325 is an apocalyptic number.

It is an amenable number.

16140325 is a deficient number, since it is larger than the sum of its proper divisors (4415775).

16140325 is a wasteful number, since it uses less digits than its factorization.

16140325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17496 (or 17491 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16140325 is about 4017.5023335401. The cubic root of 16140325 is about 252.7187269202.

Adding to 16140325 its reverse (52304161), we get a palindrome (68444486).

The spelling of 16140325 in words is "sixteen million, one hundred forty thousand, three hundred twenty-five".