5111291 has 4 divisors (see below), whose sum is σ = 5249472. Its totient is φ = 4973112.

The previous prime is 5111287. The next prime is 5111299. The reversal of 5111291 is 1921115.

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 5111291 - 2² = 5111287 is a prime.

It is a super-2 number, since 2×5111291² = 52250591373362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5111299) 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, 69035 + ... + 69108.

It is an arithmetic number, because the mean of its divisors is an integer number (1312368).

Almost surely, 2^5111291 is an apocalyptic number.

5111291 is a deficient number, since it is larger than the sum of its proper divisors (138181).

5111291 is a wasteful number, since it uses less digits than its factorization.

5111291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138180.

The product of its digits is 90, while the sum is 20.

The square root of 5111291 is about 2260.8164454462. The cubic root of 5111291 is about 172.2569959305.

The spelling of 5111291 in words is "five million, one hundred eleven thousand, two hundred ninety-one".