1315946951 has 8 divisors (see below), whose sum is σ = 1436053008. Its totient is φ = 1195920000.

The previous prime is 1315946941. The next prime is 1315946959. The reversal of 1315946951 is 1596495131.

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

It is not a de Polignac number, because 1315946951 - 2¹⁸ = 1315684807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315946959) 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, 18191 + ... + 54431.

It is an arithmetic number, because the mean of its divisors is an integer number (179506626).

Almost surely, 2^1315946951 is an apocalyptic number.

1315946951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1315946951 is a deficient number, since it is larger than the sum of its proper divisors (120106057).

1315946951 is a wasteful number, since it uses less digits than its factorization.

1315946951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39553.

The product of its digits is 145800, while the sum is 44.

The square root of 1315946951 is about 36275.9831155546. The cubic root of 1315946951 is about 1095.8374225501.

The spelling of 1315946951 in words is "one billion, three hundred fifteen million, nine hundred forty-six thousand, nine hundred fifty-one".