1311472456 has 24 divisors (see below), whose sum is σ = 2860482870. Its totient is φ = 562059456.

The previous prime is 1311472451. The next prime is 1311472457. The reversal of 1311472456 is 6542741131.

It can be written as a sum of positive squares in only one way, i.e., 852056100 + 459416356 = 29190^2 + 21434^2 .

It is a super-4 number, since 4×1311472456⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311472451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1672405 + ... + 1673188.

Almost surely, 2^1311472456 is an apocalyptic number.

It is an amenable number.

1311472456 is an abundant number, since it is smaller than the sum of its proper divisors (1549010414).

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

1311472456 is a wasteful number, since it uses less digits than its factorization.

1311472456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345613 (or 3345602 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 1311472456 is about 36214.2576342523. The cubic root of 1311472456 is about 1094.5939866545.

The spelling of 1311472456 in words is "one billion, three hundred eleven million, four hundred seventy-two thousand, four hundred fifty-six".