1312884091 has 8 divisors (see below), whose sum is σ = 1372438944. Its totient is φ = 1253535360.

The previous prime is 1312884077. The next prime is 1312884101. The reversal of 1312884091 is 1904882131.

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 1312884091 - 2²⁵ = 1279329659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312884091.

It is not an unprimeable number, because it can be changed into a prime (1312884011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38430 + ... + 64051.

It is an arithmetic number, because the mean of its divisors is an integer number (171554868).

Almost surely, 2^1312884091 is an apocalyptic number.

1312884091 is a deficient number, since it is larger than the sum of its proper divisors (59554853).

1312884091 is a wasteful number, since it uses less digits than its factorization.

1312884091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103061.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 1312884091 is about 36233.7424371262. The cubic root of 1312884091 is about 1094.9865767069.

The spelling of 1312884091 in words is "one billion, three hundred twelve million, eight hundred eighty-four thousand, ninety-one".