381164 has 12 divisors (see below), whose sum is σ = 762384. Its totient is φ = 163344.

The previous prime is 381103. The next prime is 381167. The reversal of 381164 is 461183.

381164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

381164 is an admirable number.

It is a super-3 number, since 3×381164³ = 166133372875616832, which contains 333 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (381167) by changing a digit.

381164 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6779 + ... + 6834.

It is an arithmetic number, because the mean of its divisors is an integer number (63532).

2³⁸¹¹⁶⁴ is an apocalyptic number.

It is an amenable number.

381164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381164 is a wasteful number, since it uses less digits than its factorization.

381164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624 (or 13622 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 381164 is about 617.3848070693. The cubic root of 381164 is about 72.5054454887.

It can be divided in two parts, 381 and 164, that added together give a palindrome (545).

The spelling of 381164 in words is "three hundred eighty-one thousand, one hundred sixty-four".