1295615972 has 48 divisors (see below), whose sum is σ = 2687997312. Its totient is φ = 534885120.

The previous prime is 1295615957. The next prime is 1295615989. The reversal of 1295615972 is 2795165921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80522 + ... + 95262.

It is an arithmetic number, because the mean of its divisors is an integer number (55999944).

Almost surely, 2^1295615972 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 1295615972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1343998656).

1295615972 is an abundant number, since it is smaller than the sum of its proper divisors (1392381340).

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

1295615972 is a wasteful number, since it uses less digits than its factorization.

1295615972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14868 (or 14866 counting only the distinct ones).

The product of its digits is 340200, while the sum is 47.

The square root of 1295615972 is about 35994.6658825999. The cubic root of 1295615972 is about 1090.1646559887.

The spelling of 1295615972 in words is "one billion, two hundred ninety-five million, six hundred fifteen thousand, nine hundred seventy-two".