5623131 has 4 divisors (see below), whose sum is σ = 7497512. Its totient is φ = 3748752.

The previous prime is 5623103. The next prime is 5623133. The reversal of 5623131 is 1313265.

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

It is not a de Polignac number, because 5623131 - 2⁵ = 5623099 is a prime.

It is a super-2 number, since 2×5623131² = 63239204486322, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5623098 and 5623107.

It is not an unprimeable number, because it can be changed into a prime (5623133) 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, 937186 + ... + 937191.

It is an arithmetic number, because the mean of its divisors is an integer number (1874378).

Almost surely, 2^5623131 is an apocalyptic number.

5623131 is a deficient number, since it is larger than the sum of its proper divisors (1874381).

5623131 is a wasteful number, since it uses less digits than its factorization.

5623131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874380.

The product of its digits is 540, while the sum is 21.

The square root of 5623131 is about 2371.3141925945. The cubic root of 5623131 is about 177.8249657578.

Adding to 5623131 its reverse (1313265), we get a palindrome (6936396).

The spelling of 5623131 in words is "five million, six hundred twenty-three thousand, one hundred thirty-one".