161103394 has 32 divisors (see below), whose sum is σ = 260769600. Its totient is φ = 74416320.

The previous prime is 161103389. The next prime is 161103403. The reversal of 161103394 is 493301161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405604 + ... + 406000.

It is an arithmetic number, because the mean of its divisors is an integer number (8149050).

Almost surely, 2^161103394 is an apocalyptic number.

161103394 is a deficient number, since it is larger than the sum of its proper divisors (99666206).

161103394 is a wasteful number, since it uses less digits than its factorization.

161103394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 161103394 is about 12692.6511808999. The cubic root of 161103394 is about 544.1286122706.

The spelling of 161103394 in words is "one hundred sixty-one million, one hundred three thousand, three hundred ninety-four".