5158891 has 4 divisors (see below), whose sum is σ = 5163592. Its totient is φ = 5154192.

The previous prime is 5158883. The next prime is 5158903. The reversal of 5158891 is 1988515.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5158891 - 2³ = 5158883 is a prime.

It is a super-2 number, since 2×5158891² = 53228312699762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5158891.

It is not an unprimeable number, because it can be changed into a prime (5158801) 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, 271 + ... + 3223.

It is an arithmetic number, because the mean of its divisors is an integer number (1290898).

Almost surely, 2^5158891 is an apocalyptic number.

5158891 is a deficient number, since it is larger than the sum of its proper divisors (4701).

5158891 is a wasteful number, since it uses less digits than its factorization.

5158891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700.

The product of its digits is 14400, while the sum is 37.

The square root of 5158891 is about 2271.3192201890. The cubic root of 5158891 is about 172.7900713567.

The spelling of 5158891 in words is "five million, one hundred fifty-eight thousand, eight hundred ninety-one".