1315254994 has 16 divisors (see below), whose sum is σ = 1997654400. Its totient is φ = 649389664.

The previous prime is 1315254989. The next prime is 1315255013. The reversal of 1315254994 is 4994525131.

It is a self number, because there is not a number n which added to its sum of digits gives 1315254994.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144939 + ... + 153745.

It is an arithmetic number, because the mean of its divisors is an integer number (124853400).

Almost surely, 2^1315254994 is an apocalyptic number.

1315254994 is a deficient number, since it is larger than the sum of its proper divisors (682399406).

1315254994 is an equidigital number, since it uses as much as digits as its factorization.

1315254994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737.

The product of its digits is 194400, while the sum is 43.

The square root of 1315254994 is about 36266.4444631673. Note that the first 4 decimals coincide. The cubic root of 1315254994 is about 1095.6453161941.

The spelling of 1315254994 in words is "one billion, three hundred fifteen million, two hundred fifty-four thousand, nine hundred ninety-four".