5137591 has 4 divisors (see below), whose sum is σ = 5145184. Its totient is φ = 5130000.

The previous prime is 5137547. The next prime is 5137651. The reversal of 5137591 is 1957315.

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 5137591 - 2¹⁹ = 4613303 is a prime.

It is a Duffinian number.

5137591 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5132591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670 + ... + 4171.

It is an arithmetic number, because the mean of its divisors is an integer number (1286296).

Almost surely, 2^5137591 is an apocalyptic number.

5137591 is a deficient number, since it is larger than the sum of its proper divisors (7593).

5137591 is an equidigital number, since it uses as much as digits as its factorization.

5137591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7592.

The product of its digits is 4725, while the sum is 31.

The square root of 5137591 is about 2266.6254653118. The cubic root of 5137591 is about 172.5519384314.

The spelling of 5137591 in words is "five million, one hundred thirty-seven thousand, five hundred ninety-one".