1311472556 has 12 divisors (see below), whose sum is σ = 2296222320. Its totient is φ = 655409040.

The previous prime is 1311472541. The next prime is 1311472559. The reversal of 1311472556 is 6552741131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1311472559) 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, 72680 + ... + 88911.

It is an arithmetic number, because the mean of its divisors is an integer number (191351860).

Almost surely, 2^1311472556 is an apocalyptic number.

It is an amenable number.

1311472556 is a deficient number, since it is larger than the sum of its proper divisors (984749764).

1311472556 is a wasteful number, since it uses less digits than its factorization.

1311472556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163624 (or 163622 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 1311472556 is about 36214.2590149239. The cubic root of 1311472556 is about 1094.5940144754.

The spelling of 1311472556 in words is "one billion, three hundred eleven million, four hundred seventy-two thousand, five hundred fifty-six".