1531713 has 8 divisors (see below), whose sum is σ = 2062528. Its totient is φ = 1011024.

The previous prime is 1531709. The next prime is 1531721. The reversal of 1531713 is 3171351.

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

It is not a de Polignac number, because 1531713 - 2² = 1531709 is a prime.

It is a super-2 number, since 2×1531713² = 4692289428738, which contains 22 as substring.

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 1531713.

It is not an unprimeable number, because it can be changed into a prime (1531793) 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, 2170 + ... + 2787.

It is an arithmetic number, because the mean of its divisors is an integer number (257816).

2^1531713 is an apocalyptic number.

It is an amenable number.

1531713 is a deficient number, since it is larger than the sum of its proper divisors (530815).

1531713 is a wasteful number, since it uses less digits than its factorization.

1531713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063.

The product of its digits is 315, while the sum is 21.

The square root of 1531713 is about 1237.6239331881. The cubic root of 1531713 is about 115.2725231757.

The spelling of 1531713 in words is "one million, five hundred thirty-one thousand, seven hundred thirteen".