16134639 has 4 divisors (see below), whose sum is σ = 21512856. Its totient is φ = 10756424.

The previous prime is 16134617. The next prime is 16134659. The reversal of 16134639 is 93643161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16134639 - 2⁷ = 16134511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16134659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2689104 + ... + 2689109.

It is an arithmetic number, because the mean of its divisors is an integer number (5378214).

Almost surely, 2^16134639 is an apocalyptic number.

16134639 is a deficient number, since it is larger than the sum of its proper divisors (5378217).

16134639 is an equidigital number, since it uses as much as digits as its factorization.

16134639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378216.

The product of its digits is 11664, while the sum is 33.

The square root of 16134639 is about 4016.7946176024. The cubic root of 16134639 is about 252.6890470665.

The spelling of 16134639 in words is "sixteen million, one hundred thirty-four thousand, six hundred thirty-nine".