1315111672 has 16 divisors (see below), whose sum is σ = 2818096560. Its totient is φ = 563619264.

The previous prime is 1315111669. The next prime is 1315111673. The reversal of 1315111672 is 2761115131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1315111672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315111673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11742013 + ... + 11742124.

It is an arithmetic number, because the mean of its divisors is an integer number (176131035).

Almost surely, 2^1315111672 is an apocalyptic number.

It is an amenable number.

1315111672 is an abundant number, since it is smaller than the sum of its proper divisors (1502984888).

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

1315111672 is a wasteful number, since it uses less digits than its factorization.

1315111672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23484150 (or 23484146 counting only the distinct ones).

The product of its digits is 1260, while the sum is 28.

The square root of 1315111672 is about 36264.4684505371. The cubic root of 1315111672 is about 1095.6055176296.

The spelling of 1315111672 in words is "one billion, three hundred fifteen million, one hundred eleven thousand, six hundred seventy-two".