1313447274 has 12 divisors (see below), whose sum is σ = 2845802466. Its totient is φ = 437815752.

The previous prime is 1313447273. The next prime is 1313447281. The reversal of 1313447274 is 4727443131.

It can be written as a sum of positive squares in only one way, i.e., 1095146649 + 218300625 = 33093^2 + 14775^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313447273) 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, 36484629 + ... + 36484664.

Almost surely, 2^1313447274 is an apocalyptic number.

1313447274 is an abundant number, since it is smaller than the sum of its proper divisors (1532355192).

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

1313447274 is a wasteful number, since it uses less digits than its factorization.

1313447274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72969301 (or 72969298 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 1313447274 is about 36241.5131306627. The cubic root of 1313447274 is about 1095.1431250960.

The spelling of 1313447274 in words is "one billion, three hundred thirteen million, four hundred forty-seven thousand, two hundred seventy-four".