161934119 has 2 divisors, whose sum is σ = 161934120. Its totient is φ = 161934118.

The previous prime is 161934107. The next prime is 161934127. The reversal of 161934119 is 911439161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161934119 is a prime.

It is a super-2 number, since 2×161934119² = 52445317792612322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161934139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80967059 + 80967060.

It is an arithmetic number, because the mean of its divisors is an integer number (80967060).

Almost surely, 2^161934119 is an apocalyptic number.

161934119 is a deficient number, since it is larger than the sum of its proper divisors (1).

161934119 is an equidigital number, since it uses as much as digits as its factorization.

161934119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 35.

The square root of 161934119 is about 12725.3337480791. Note that the first 3 decimals coincide. The cubic root of 161934119 is about 545.0622704709.

The spelling of 161934119 in words is "one hundred sixty-one million, nine hundred thirty-four thousand, one hundred nineteen".