5213731 has 8 divisors (see below), whose sum is σ = 5348864. Its totient is φ = 5080320.

The previous prime is 5213717. The next prime is 5213737. The reversal of 5213731 is 1373125.

5213731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5213731 - 2⁷ = 5213603 is a prime.

It is a super-2 number, since 2×5213731² = 54365981880722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5213737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7411 + ... + 8083.

It is an arithmetic number, because the mean of its divisors is an integer number (668608).

Almost surely, 2^5213731 is an apocalyptic number.

5213731 is a deficient number, since it is larger than the sum of its proper divisors (135133).

5213731 is a wasteful number, since it uses less digits than its factorization.

5213731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861.

The product of its digits is 630, while the sum is 22.

The square root of 5213731 is about 2283.3595862238. The cubic root of 5213731 is about 173.4001784424.

Adding to 5213731 its reverse (1373125), we get a palindrome (6586856).

Subtracting from 5213731 its reverse (1373125), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 5213731 in words is "five million, two hundred thirteen thousand, seven hundred thirty-one".