1313478352 has 20 divisors (see below), whose sum is σ = 2586585316. Its totient is φ = 645972480.

The previous prime is 1313478349. The next prime is 1313478373. The reversal of 1313478352 is 2538743131.

It can be written as a sum of positive squares in 2 ways, for example, as 213627456 + 1099850896 = 14616^2 + 33164^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671913 + ... + 673864.

Almost surely, 2^1313478352 is an apocalyptic number.

It is an amenable number.

1313478352 is a deficient number, since it is larger than the sum of its proper divisors (1273106964).

1313478352 is a wasteful number, since it uses less digits than its factorization.

1313478352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345846 (or 1345840 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 1313478352 is about 36241.9418905776. The cubic root of 1313478352 is about 1095.1517625673.

The spelling of 1313478352 in words is "one billion, three hundred thirteen million, four hundred seventy-eight thousand, three hundred fifty-two".