1324168381 has 4 divisors (see below), whose sum is σ = 1325100352. Its totient is φ = 1323236412.

The previous prime is 1324168361. The next prime is 1324168393. The reversal of 1324168381 is 1838614231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1324168381 is a prime.

It is a super-2 number, since 2×1324168381² = 3506843802480322322, which contains 22 as substring.

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 1324168381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324168361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463851 + ... + 466696.

It is an arithmetic number, because the mean of its divisors is an integer number (331275088).

Almost surely, 2^1324168381 is an apocalyptic number.

It is an amenable number.

1324168381 is a deficient number, since it is larger than the sum of its proper divisors (931971).

1324168381 is an equidigital number, since it uses as much as digits as its factorization.

1324168381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931970.

The product of its digits is 27648, while the sum is 37.

The square root of 1324168381 is about 36389.1244879566. The cubic root of 1324168381 is about 1098.1147821895.

The spelling of 1324168381 in words is "one billion, three hundred twenty-four million, one hundred sixty-eight thousand, three hundred eighty-one".