161036242 has 16 divisors (see below), whose sum is σ = 245617632. Its totient is φ = 79168320.

The previous prime is 161036237. The next prime is 161036251. The reversal of 161036242 is 242630161.

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, 117642 + ... + 119002.

It is an arithmetic number, because the mean of its divisors is an integer number (15351102).

Almost surely, 2^161036242 is an apocalyptic number.

161036242 is a deficient number, since it is larger than the sum of its proper divisors (84581390).

161036242 is a wasteful number, since it uses less digits than its factorization.

161036242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 161036242 is about 12690.0055949554. The cubic root of 161036242 is about 544.0529995400.

The spelling of 161036242 in words is "one hundred sixty-one million, thirty-six thousand, two hundred forty-two".