161473012 has 12 divisors (see below), whose sum is σ = 288590400. Its totient is φ = 79018616.

The previous prime is 161472991. The next prime is 161473019. The reversal of 161473012 is 210374161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161473019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 429262 + ... + 429637.

It is an arithmetic number, because the mean of its divisors is an integer number (24049200).

Almost surely, 2^161473012 is an apocalyptic number.

It is an amenable number.

161473012 is a deficient number, since it is larger than the sum of its proper divisors (127117388).

161473012 is a wasteful number, since it uses less digits than its factorization.

161473012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858950 (or 858948 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 161473012 is about 12707.2031541170. The cubic root of 161473012 is about 544.5444241521.

The spelling of 161473012 in words is "one hundred sixty-one million, four hundred seventy-three thousand, twelve".