161394790 has 8 divisors (see below), whose sum is σ = 290510640. Its totient is φ = 64557912.

The previous prime is 161394763. The next prime is 161394791. The reversal of 161394790 is 97493161.

161394790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161394791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8069730 + ... + 8069749.

It is an arithmetic number, because the mean of its divisors is an integer number (36313830).

Almost surely, 2^161394790 is an apocalyptic number.

161394790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161394790 is a deficient number, since it is larger than the sum of its proper divisors (129115850).

161394790 is a wasteful number, since it uses less digits than its factorization.

161394790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16139486.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 161394790 is about 12704.1249206705. The cubic root of 161394790 is about 544.4564791484.

The spelling of 161394790 in words is "one hundred sixty-one million, three hundred ninety-four thousand, seven hundred ninety".