5158749 has 4 divisors (see below), whose sum is σ = 6878336. Its totient is φ = 3439164.

The previous prime is 5158733. The next prime is 5158759. The reversal of 5158749 is 9478515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5158749 - 2⁴ = 5158733 is a prime.

It is a super-2 number, since 2×5158749² = 53225382490002, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5158759) 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, 859789 + ... + 859794.

It is an arithmetic number, because the mean of its divisors is an integer number (1719584).

Almost surely, 2^5158749 is an apocalyptic number.

It is an amenable number.

5158749 is a deficient number, since it is larger than the sum of its proper divisors (1719587).

5158749 is a wasteful number, since it uses less digits than its factorization.

5158749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719586.

The product of its digits is 50400, while the sum is 39.

The square root of 5158749 is about 2271.2879606074. The cubic root of 5158749 is about 172.7884859762.

The spelling of 5158749 in words is "five million, one hundred fifty-eight thousand, seven hundred forty-nine".