161458111 has 2 divisors, whose sum is σ = 161458112. Its totient is φ = 161458110.

The previous prime is 161458097. The next prime is 161458117. The reversal of 161458111 is 111854161.

It is a strong prime.

It is an emirp because it is prime and its reverse (111854161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161458111 - 2⁵ = 161458079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161458111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161458117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80729055 + 80729056.

It is an arithmetic number, because the mean of its divisors is an integer number (80729056).

Almost surely, 2^161458111 is an apocalyptic number.

161458111 is a deficient number, since it is larger than the sum of its proper divisors (1).

161458111 is an equidigital number, since it uses as much as digits as its factorization.

161458111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 28.

The square root of 161458111 is about 12706.6168195944. The cubic root of 161458111 is about 544.5276731463.

The spelling of 161458111 in words is "one hundred sixty-one million, four hundred fifty-eight thousand, one hundred eleven".