16013239 has 8 divisors (see below), whose sum is σ = 17544960. Its totient is φ = 14494200.

The previous prime is 16013237. The next prime is 16013279. The reversal of 16013239 is 93231061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16013239 - 2¹ = 16013237 is a prime.

It is a super-2 number, since 2×16013239² = 512847646542242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16013237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417 + ... + 5674.

It is an arithmetic number, because the mean of its divisors is an integer number (2193120).

Almost surely, 2^16013239 is an apocalyptic number.

16013239 is a deficient number, since it is larger than the sum of its proper divisors (1531721).

16013239 is a wasteful number, since it uses less digits than its factorization.

16013239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 16013239 is about 4001.6545328151. The cubic root of 16013239 is about 252.0536912136.

The spelling of 16013239 in words is "sixteen million, thirteen thousand, two hundred thirty-nine".