5091143 has 4 divisors (see below), whose sum is σ = 5390640. Its totient is φ = 4791648.

The previous prime is 5091113. The next prime is 5091173. The reversal of 5091143 is 3411905.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (5091113) and next prime (5091173).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5091143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5091113) 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, 149723 + ... + 149756.

It is an arithmetic number, because the mean of its divisors is an integer number (1347660).

Almost surely, 2^5091143 is an apocalyptic number.

5091143 is a deficient number, since it is larger than the sum of its proper divisors (299497).

5091143 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 5091143 = (1093415)₁₃.

5091143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299496.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 5091143 is about 2256.3561332378. The cubic root of 5091143 is about 172.0303601536.

The spelling of 5091143 in words is "five million, ninety-one thousand, one hundred forty-three".