1315974378 has 8 divisors (see below), whose sum is σ = 2631948768. Its totient is φ = 438658124.

The previous prime is 1315974367. The next prime is 1315974433. The reversal of 1315974378 is 8734795131.

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

1315974378 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109664526 + ... + 109664537.

It is an arithmetic number, because the mean of its divisors is an integer number (328993596).

Almost surely, 2^1315974378 is an apocalyptic number.

1315974378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315974378 is a wasteful number, since it uses less digits than its factorization.

1315974378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219329068.

The product of its digits is 635040, while the sum is 48.

The square root of 1315974378 is about 36276.3611460687. The cubic root of 1315974378 is about 1095.8450356544.

The spelling of 1315974378 in words is "one billion, three hundred fifteen million, nine hundred seventy-four thousand, three hundred seventy-eight".