161114809 has 4 divisors (see below), whose sum is σ = 161173504. Its totient is φ = 161056116.

The previous prime is 161114783. The next prime is 161114819. The reversal of 161114809 is 908411161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161114809 - 2²¹ = 159017657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161114819) 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, 25017 + ... + 30790.

It is an arithmetic number, because the mean of its divisors is an integer number (40293376).

Almost surely, 2^161114809 is an apocalyptic number.

It is an amenable number.

161114809 is a deficient number, since it is larger than the sum of its proper divisors (58695).

161114809 is an equidigital number, since it uses as much as digits as its factorization.

161114809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58694.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 161114809 is about 12693.1008425837. The cubic root of 161114809 is about 544.1414633995.

The spelling of 161114809 in words is "one hundred sixty-one million, one hundred fourteen thousand, eight hundred nine".