715231 has 12 divisors (see below), whose sum is σ = 823536. Its totient is φ = 619520.

The previous prime is 715229. The next prime is 715237. The reversal of 715231 is 132517.

It is not a de Polignac number, because 715231 - 2¹ = 715229 is a prime.

It is a super-2 number, since 2×715231² = 1023110766722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

715231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 715199 and 715208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2655 + ... + 2911.

It is an arithmetic number, because the mean of its divisors is an integer number (68628).

2⁷¹⁵²³¹ is an apocalyptic number.

715231 is a deficient number, since it is larger than the sum of its proper divisors (108305).

715231 is a wasteful number, since it uses less digits than its factorization.

715231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 291 counting only the distinct ones).

The product of its digits is 210, while the sum is 19.

The square root of 715231 is about 845.7133083971. The cubic root of 715231 is about 89.4297691918.

Adding to 715231 its reverse (132517), we get a palindrome (847748).

It can be divided in two parts, 715 and 231, that added together give a triangular number (946 = T₄₃).

The spelling of 715231 in words is "seven hundred fifteen thousand, two hundred thirty-one".