1312252224 has 28 divisors (see below), whose sum is σ = 3472001184. Its totient is φ = 437417344.

The previous prime is 1312252177. The next prime is 1312252231. The reversal of 1312252224 is 4222522131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1312252194 and 1312252203.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3417132 + ... + 3417515.

Almost surely, 2^1312252224 is an apocalyptic number.

It is an amenable number.

1312252224 is an abundant number, since it is smaller than the sum of its proper divisors (2159748960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312252224 is an equidigital number, since it uses as much as digits as its factorization.

1312252224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834662 (or 6834652 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 1312252224 is about 36225.0220703867. The cubic root of 1312252224 is about 1094.8108828751.

Adding to 1312252224 its reverse (4222522131), we get a palindrome (5534774355).

The spelling of 1312252224 in words is "one billion, three hundred twelve million, two hundred fifty-two thousand, two hundred twenty-four".