381323169 has 12 divisors (see below), whose sum is σ = 554449792. Its totient is φ = 252531000.

The previous prime is 381323167. The next prime is 381323171. The reversal of 381323169 is 961323183.

It is an interprime number because it is at equal distance from previous prime (381323167) and next prime (381323171).

It is not a de Polignac number, because 381323169 - 2¹ = 381323167 is a prime.

It is a super-2 number, since 2×381323169² = 290814718432405122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381323161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138937 + ... + 141654.

Almost surely, 2^381323169 is an apocalyptic number.

It is an amenable number.

381323169 is a deficient number, since it is larger than the sum of its proper divisors (173126623).

381323169 is a wasteful number, since it uses less digits than its factorization.

381323169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280748 (or 280745 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 381323169 is about 19527.4977659709. The cubic root of 381323169 is about 725.1553651972.

The spelling of 381323169 in words is "three hundred eighty-one million, three hundred twenty-three thousand, one hundred sixty-nine".