381158 has 4 divisors (see below), whose sum is σ = 571740. Its totient is φ = 190578.

The previous prime is 381103. The next prime is 381167. The reversal of 381158 is 851183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 851183 = 479 ⋅1777.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95288 + ... + 95291.

It is an arithmetic number, because the mean of its divisors is an integer number (142935).

2³⁸¹¹⁵⁸ is an apocalyptic number.

381158 is a deficient number, since it is larger than the sum of its proper divisors (190582).

381158 is a wasteful number, since it uses less digits than its factorization.

381158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190581.

The product of its digits is 960, while the sum is 26.

The square root of 381158 is about 617.3799478441. The cubic root of 381158 is about 72.5050650445.

The spelling of 381158 in words is "three hundred eighty-one thousand, one hundred fifty-eight".