161090934 has 8 divisors (see below), whose sum is σ = 322181880. Its totient is φ = 53696976.

The previous prime is 161090921. The next prime is 161090939. The reversal of 161090934 is 439090161.

161090934 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.

161090934 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 161090895 and 161090904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161090939) 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, 13424239 + ... + 13424250.

It is an arithmetic number, because the mean of its divisors is an integer number (40272735).

Almost surely, 2^161090934 is an apocalyptic number.

161090934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161090934 is a wasteful number, since it uses less digits than its factorization.

161090934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26848494.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 161090934 is about 12692.1603362075. The cubic root of 161090934 is about 544.1145839767.

The spelling of 161090934 in words is "one hundred sixty-one million, ninety thousand, nine hundred thirty-four".