5123591 has 4 divisors (see below), whose sum is σ = 5589384. Its totient is φ = 4657800.

The previous prime is 5123551. The next prime is 5123603. The reversal of 5123591 is 1953215.

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 5123591 - 2⁶ = 5123527 is a prime.

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 5123591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232880 + ... + 232901.

It is an arithmetic number, because the mean of its divisors is an integer number (1397346).

Almost surely, 2^5123591 is an apocalyptic number.

5123591 is a deficient number, since it is larger than the sum of its proper divisors (465793).

5123591 is a wasteful number, since it uses less digits than its factorization.

5123591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465792.

The product of its digits is 1350, while the sum is 26.

The square root of 5123591 is about 2263.5350671019. The cubic root of 5123591 is about 172.3950604471.

The spelling of 5123591 in words is "five million, one hundred twenty-three thousand, five hundred ninety-one".