1313381355 has 64 divisors (see below), whose sum is σ = 2478712320. Its totient is φ = 585446400.

The previous prime is 1313381339. The next prime is 1313381387. The reversal of 1313381355 is 5531833131.

It is not a de Polignac number, because 1313381355 - 2⁴ = 1313381339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 in 63 ways as a sum of consecutive naturals, for example, 601656 + ... + 603834.

It is an arithmetic number, because the mean of its divisors is an integer number (38729880).

Almost surely, 2^1313381355 is an apocalyptic number.

1313381355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313381355 is a deficient number, since it is larger than the sum of its proper divisors (1165330965).

1313381355 is a wasteful number, since it uses less digits than its factorization.

1313381355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492.

The product of its digits is 16200, while the sum is 33.

The square root of 1313381355 is about 36240.6036787469. The cubic root of 1313381355 is about 1095.1248038562.

The spelling of 1313381355 in words is "one billion, three hundred thirteen million, three hundred eighty-one thousand, three hundred fifty-five".