16013275 has 6 divisors (see below), whose sum is σ = 19856492. Its totient is φ = 12810600.

The previous prime is 16013237. The next prime is 16013279. The reversal of 16013275 is 57231061.

It is a de Polignac number, because none of the positive numbers 2^k-16013275 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 640531 = 16013275 / (1 + 6 + 0 + 1 + 3 + 2 + 7 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16013279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320241 + ... + 320290.

Almost surely, 2^16013275 is an apocalyptic number.

16013275 is a deficient number, since it is larger than the sum of its proper divisors (3843217).

16013275 is an equidigital number, since it uses as much as digits as its factorization.

16013275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640541 (or 640536 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 16013275 is about 4001.6590309520. The cubic root of 16013275 is about 252.0538800975.

The spelling of 16013275 in words is "sixteen million, thirteen thousand, two hundred seventy-five".