161934113 has 8 divisors (see below), whose sum is σ = 176838816. Its totient is φ = 147060000.

The previous prime is 161934107. The next prime is 161934119. The reversal of 161934113 is 311439161.

161934113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161934107) and next prime (161934119).

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

It is a cyclic number.

It is not a de Polignac number, because 161934113 - 2²⁰ = 160885537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161934119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4238 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (22104852).

Almost surely, 2^161934113 is an apocalyptic number.

It is an amenable number.

161934113 is a deficient number, since it is larger than the sum of its proper divisors (14904703).

161934113 is a wasteful number, since it uses less digits than its factorization.

161934113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15295.

The product of its digits is 1944, while the sum is 29.

The square root of 161934113 is about 12725.3335123289. Note that the first 3 decimals coincide. The cubic root of 161934113 is about 545.0622637390.

The spelling of 161934113 in words is "one hundred sixty-one million, nine hundred thirty-four thousand, one hundred thirteen".