381375164 has 12 divisors (see below), whose sum is σ = 667825704. Its totient is φ = 190567824.

The previous prime is 381375157. The next prime is 381375223. The reversal of 381375164 is 461573183.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22574 + ... + 35669.

It is an arithmetic number, because the mean of its divisors is an integer number (55652142).

Almost surely, 2^381375164 is an apocalyptic number.

It is an amenable number.

381375164 is a deficient number, since it is larger than the sum of its proper divisors (286450540).

381375164 is a wasteful number, since it uses less digits than its factorization.

381375164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59884 (or 59882 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 381375164 is about 19528.8290483582. The cubic root of 381375164 is about 725.1883230159.

The spelling of 381375164 in words is "three hundred eighty-one million, three hundred seventy-five thousand, one hundred sixty-four".