1311476745 has 8 divisors (see below), whose sum is σ = 2098362816. Its totient is φ = 699454256.

The previous prime is 1311476689. The next prime is 1311476783. The reversal of 1311476745 is 5476741131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311476745 - 2⁶ = 1311476681 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 43715877 + ... + 43715906.

It is an arithmetic number, because the mean of its divisors is an integer number (262295352).

Almost surely, 2^1311476745 is an apocalyptic number.

1311476745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311476745 is a deficient number, since it is larger than the sum of its proper divisors (786886071).

1311476745 is an equidigital number, since it uses as much as digits as its factorization.

1311476745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87431791.

The product of its digits is 70560, while the sum is 39.

The square root of 1311476745 is about 36214.3168512123. The cubic root of 1311476745 is about 1094.5951798955.

The spelling of 1311476745 in words is "one billion, three hundred eleven million, four hundred seventy-six thousand, seven hundred forty-five".