161034911 has 2 divisors, whose sum is σ = 161034912. Its totient is φ = 161034910.

The previous prime is 161034901. The next prime is 161034949. The reversal of 161034911 is 119430161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161034911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161034901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80517455 + 80517456.

It is an arithmetic number, because the mean of its divisors is an integer number (80517456).

Almost surely, 2^161034911 is an apocalyptic number.

161034911 is a deficient number, since it is larger than the sum of its proper divisors (1).

161034911 is an equidigital number, since it uses as much as digits as its factorization.

161034911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 161034911 is about 12689.9531520018. The cubic root of 161034911 is about 544.0515006300.

The spelling of 161034911 in words is "one hundred sixty-one million, thirty-four thousand, nine hundred eleven".