1315315554 has 64 divisors (see below), whose sum is σ = 3110510592. Its totient is φ = 362851200.

The previous prime is 1315315511. The next prime is 1315315571. The reversal of 1315315554 is 4555135131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 763414 + ... + 765134.

It is an arithmetic number, because the mean of its divisors is an integer number (48601728).

Almost surely, 2^1315315554 is an apocalyptic number.

1315315554 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 1315315554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555255296).

1315315554 is an abundant number, since it is smaller than the sum of its proper divisors (1795195038).

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

1315315554 is a wasteful number, since it uses less digits than its factorization.

1315315554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its digits is 22500, while the sum is 33.

The square root of 1315315554 is about 36267.2793851427. The cubic root of 1315315554 is about 1095.6621320111.

The spelling of 1315315554 in words is "one billion, three hundred fifteen million, three hundred fifteen thousand, five hundred fifty-four".