161469164 has 24 divisors (see below), whose sum is σ = 288731520. Its totient is φ = 78983424.

The previous prime is 161469157. The next prime is 161469181. The reversal of 161469164 is 461964161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90917 + ... + 92675.

It is an arithmetic number, because the mean of its divisors is an integer number (12030480).

Almost surely, 2^161469164 is an apocalyptic number.

It is an amenable number.

161469164 is a deficient number, since it is larger than the sum of its proper divisors (127262356).

161469164 is a wasteful number, since it uses less digits than its factorization.

161469164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2247 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 161469164 is about 12707.0517430284. The cubic root of 161469164 is about 544.5400985096.

The spelling of 161469164 in words is "one hundred sixty-one million, four hundred sixty-nine thousand, one hundred sixty-four".