361997158 has 16 divisors (see below), whose sum is σ = 573431040. Its totient is φ = 170915400.

The previous prime is 361997123. The next prime is 361997171. The reversal of 361997158 is 851799163.

It is a congruent number.

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, 3498 + ... + 27133.

It is an arithmetic number, because the mean of its divisors is an integer number (35839440).

Almost surely, 2^361997158 is an apocalyptic number.

361997158 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

361997158 is a deficient number, since it is larger than the sum of its proper divisors (211433882).

361997158 is a wasteful number, since it uses less digits than its factorization.

361997158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30963.

The product of its digits is 408240, while the sum is 49.

The square root of 361997158 is about 19026.2229041920. Note that the first 3 decimals coincide. The cubic root of 361997158 is about 712.6917316368.

The spelling of 361997158 in words is "three hundred sixty-one million, nine hundred ninety-seven thousand, one hundred fifty-eight".