1313766554 has 4 divisors (see below), whose sum is σ = 1970649834. Its totient is φ = 656883276.

The previous prime is 1313766541. The next prime is 1313766617. The reversal of 1313766554 is 4556673131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 666827329 + 646939225 = 25823^2 + 25435^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328441637 + ... + 328441640.

Almost surely, 2^1313766554 is an apocalyptic number.

1313766554 is a deficient number, since it is larger than the sum of its proper divisors (656883280).

1313766554 is an equidigital number, since it uses as much as digits as its factorization.

1313766554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656883279.

The product of its digits is 226800, while the sum is 41.

The square root of 1313766554 is about 36245.9177563488. The cubic root of 1313766554 is about 1095.2318557149.

The spelling of 1313766554 in words is "one billion, three hundred thirteen million, seven hundred sixty-six thousand, five hundred fifty-four".