1315711672 has 64 divisors (see below), whose sum is σ = 2874009600. Its totient is φ = 558768000.

The previous prime is 1315711613. The next prime is 1315711673. The reversal of 1315711672 is 2761175131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315711673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70797 + ... + 87427.

It is an arithmetic number, because the mean of its divisors is an integer number (44906400).

Almost surely, 2^1315711672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315711672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437004800).

1315711672 is an abundant number, since it is smaller than the sum of its proper divisors (1558297928).

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

1315711672 is a wasteful number, since it uses less digits than its factorization.

1315711672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16708 (or 16704 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The square root of 1315711672 is about 36272.7400674391. The cubic root of 1315711672 is about 1095.7721101655.

The spelling of 1315711672 in words is "one billion, three hundred fifteen million, seven hundred eleven thousand, six hundred seventy-two".