1321444152 has 96 divisors (see below), whose sum is σ = 4270006800. Its totient is φ = 377552448.

The previous prime is 1321444147. The next prime is 1321444171. The reversal of 1321444152 is 2514441231.

1321444152 is a `hidden beast` number, since 1 + 3 + 214 + 441 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51843 + ... + 73010.

Almost surely, 2^1321444152 is an apocalyptic number.

1321444152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321444152 is an abundant number, since it is smaller than the sum of its proper divisors (2948562648).

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

1321444152 is a wasteful number, since it uses less digits than its factorization.

1321444152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124882 (or 124865 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1321444152 is about 36351.6733039897. The cubic root of 1321444152 is about 1097.3612098540.

Adding to 1321444152 its reverse (2514441231), we get a palindrome (3835885383).

The spelling of 1321444152 in words is "one billion, three hundred twenty-one million, four hundred forty-four thousand, one hundred fifty-two".