715331 has 4 divisors (see below), whose sum is σ = 753000. Its totient is φ = 677664.

The previous prime is 715313. The next prime is 715339. The reversal of 715331 is 133517.

It is a happy number.

715331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-715331 is a prime.

It is a super-2 number, since 2×715331² = 1023396879122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715339) 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, 18806 + ... + 18843.

It is an arithmetic number, because the mean of its divisors is an integer number (188250).

2⁷¹⁵³³¹ is an apocalyptic number.

715331 is a deficient number, since it is larger than the sum of its proper divisors (37669).

715331 is a wasteful number, since it uses less digits than its factorization.

715331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37668.

The product of its digits is 315, while the sum is 20.

The square root of 715331 is about 845.7724280207. The cubic root of 715331 is about 89.4339368710.

Adding to 715331 its reverse (133517), we get a palindrome (848848).

The spelling of 715331 in words is "seven hundred fifteen thousand, three hundred thirty-one".