1315252331 has 8 divisors (see below), whose sum is σ = 1320113328. Its totient is φ = 1310400000.

The previous prime is 1315252327. The next prime is 1315252339. The reversal of 1315252331 is 1332525131.

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 1315252331 - 2² = 1315252327 is a prime.

It is a super-2 number, since 2×1315252331² = 3459777388401867122, 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 1315252331.

It is not an unprimeable number, because it can be changed into a prime (1315252339) 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, 480236 + ... + 482966.

It is an arithmetic number, because the mean of its divisors is an integer number (165014166).

Almost surely, 2^1315252331 is an apocalyptic number.

1315252331 is a deficient number, since it is larger than the sum of its proper divisors (4860997).

1315252331 is a wasteful number, since it uses less digits than its factorization.

1315252331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333.

The product of its digits is 2700, while the sum is 26.

The square root of 1315252331 is about 36266.4077487694. The cubic root of 1315252331 is about 1095.6445767417.

Adding to 1315252331 its reverse (1332525131), we get a palindrome (2647777462).

The spelling of 1315252331 in words is "one billion, three hundred fifteen million, two hundred fifty-two thousand, three hundred thirty-one".