1315972 has 24 divisors (see below), whose sum is σ = 2695616. Its totient is φ = 550368.

The previous prime is 1315969. The next prime is 1316009. The reversal of 1315972 is 2795131.

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

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 1315972.

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, 658 + ... + 1750.

2^1315972 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 1315972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347808).

1315972 is an abundant number, since it is smaller than the sum of its proper divisors (1379644).

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

1315972 is a wasteful number, since it uses less digits than its factorization.

1315972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1145 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 1315972 is about 1147.1582279703. The cubic root of 1315972 is about 109.5844375580.

It can be divided in two parts, 13159 and 72, that added together give a palindrome (13231).

The spelling of 1315972 in words is "one million, three hundred fifteen thousand, nine hundred seventy-two".