381156 has 24 divisors (see below), whose sum is σ = 928704. Its totient is φ = 121440.

The previous prime is 381103. The next prime is 381167. The reversal of 381156 is 651183.

381156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415 + ... + 966.

It is an arithmetic number, because the mean of its divisors is an integer number (38696).

2³⁸¹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

381156 is an abundant number, since it is smaller than the sum of its proper divisors (547548).

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

381156 is a wasteful number, since it uses less digits than its factorization.

381156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1409 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 381156 is about 617.3783280939. The cubic root of 381156 is about 72.5049382288.

The spelling of 381156 in words is "three hundred eighty-one thousand, one hundred fifty-six".