5158639 has 4 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 5146240.

The previous prime is 5158603. The next prime is 5158663. The reversal of 5158639 is 9368515.

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 5158639 - 2⁷ = 5158511 is a prime.

It is a super-2 number, since 2×5158639² = 53223112664642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5158598 and 5158607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5158669) 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, 5554 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760).

Almost surely, 2^5158639 is an apocalyptic number.

5158639 is a deficient number, since it is larger than the sum of its proper divisors (12401).

5158639 is a wasteful number, since it uses less digits than its factorization.

5158639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12400.

The product of its digits is 32400, while the sum is 37.

The square root of 5158639 is about 2271.2637451428. The cubic root of 5158639 is about 172.7872578446.

The spelling of 5158639 in words is "five million, one hundred fifty-eight thousand, six hundred thirty-nine".