381597158 has 16 divisors (see below), whose sum is σ = 578376720. Its totient is φ = 188810496.

The previous prime is 381597133. The next prime is 381597173. The reversal of 381597158 is 851795183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229466 + ... + 231122.

It is an arithmetic number, because the mean of its divisors is an integer number (36148545).

Almost surely, 2^381597158 is an apocalyptic number.

381597158 is a deficient number, since it is larger than the sum of its proper divisors (196779562).

381597158 is a wasteful number, since it uses less digits than its factorization.

381597158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791.

The product of its digits is 302400, while the sum is 47.

The square root of 381597158 is about 19534.5119724041. The cubic root of 381597158 is about 725.3290035894.

The spelling of 381597158 in words is "three hundred eighty-one million, five hundred ninety-seven thousand, one hundred fifty-eight".