1313326945 has 8 divisors (see below), whose sum is σ = 1801134144. Its totient is φ = 900567024.

The previous prime is 1313326907. The next prime is 1313327017. The reversal of 1313326945 is 5496233131.

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

It is a de Polignac number, because none of the positive numbers 2^k-1313326945 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18761779 + ... + 18761848.

It is an arithmetic number, because the mean of its divisors is an integer number (225141768).

Almost surely, 2^1313326945 is an apocalyptic number.

It is an amenable number.

1313326945 is a deficient number, since it is larger than the sum of its proper divisors (487807199).

1313326945 is an equidigital number, since it uses as much as digits as its factorization.

1313326945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37523639.

The product of its digits is 58320, while the sum is 37.

The square root of 1313326945 is about 36239.8529936312. The cubic root of 1313326945 is about 1095.1096809159.

The spelling of 1313326945 in words is "one billion, three hundred thirteen million, three hundred twenty-six thousand, nine hundred forty-five".