1315381914 has 96 divisors (see below), whose sum is σ = 3707817984. Its totient is φ = 326795040.

The previous prime is 1315381909. The next prime is 1315381927. The reversal of 1315381914 is 4191835131.

It is a happy number.

1315381914 is a `hidden beast` number, since 1 + 31 + 538 + 1 + 91 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11247 + ... + 52509.

It is an arithmetic number, because the mean of its divisors is an integer number (38623104).

Almost surely, 2^1315381914 is an apocalyptic number.

1315381914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315381914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853908992).

1315381914 is an abundant number, since it is smaller than the sum of its proper divisors (2392436070).

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

1315381914 is a wasteful number, since it uses less digits than its factorization.

1315381914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41312 (or 41309 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 1315381914 is about 36268.1942478530. The cubic root of 1315381914 is about 1095.6805577332.

The spelling of 1315381914 in words is "one billion, three hundred fifteen million, three hundred eighty-one thousand, nine hundred fourteen".