1312244161 has 8 divisors (see below), whose sum is σ = 1400043744. Its totient is φ = 1225623360.

The previous prime is 1312244149. The next prime is 1312244191. The reversal of 1312244161 is 1614422131.

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 1312244161 - 2²¹ = 1310147009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312244191) 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, 292395 + ... + 296848.

It is an arithmetic number, because the mean of its divisors is an integer number (175005468).

Almost surely, 2^1312244161 is an apocalyptic number.

It is an amenable number.

1312244161 is a deficient number, since it is larger than the sum of its proper divisors (87799583).

1312244161 is a wasteful number, since it uses less digits than its factorization.

1312244161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589391.

The product of its digits is 1152, while the sum is 25.

The square root of 1312244161 is about 36224.9107797383. The cubic root of 1312244161 is about 1094.8086405525.

Adding to 1312244161 its reverse (1614422131), we get a palindrome (2926666292).

The spelling of 1312244161 in words is "one billion, three hundred twelve million, two hundred forty-four thousand, one hundred sixty-one".