161414809 has 2 divisors, whose sum is σ = 161414810. Its totient is φ = 161414808.

The previous prime is 161414797. The next prime is 161414821. The reversal of 161414809 is 908414161.

161414809 is nontrivially palindromic in base 16.

It is a balanced prime because it is at equal distance from previous prime (161414797) and next prime (161414821).

It can be written as a sum of positive squares in only one way, i.e., 86211225 + 75203584 = 9285^2 + 8672^2 .

It is an emirp because it is prime and its reverse (908414161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161414809 - 2¹¹ = 161412761 is a prime.

It is equal to p_9049345 and since 161414809 and 9049345 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (161414849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80707404 + 80707405.

It is an arithmetic number, because the mean of its divisors is an integer number (80707405).

Almost surely, 2^161414809 is an apocalyptic number.

It is an amenable number.

161414809 is a deficient number, since it is larger than the sum of its proper divisors (1).

161414809 is an equidigital number, since it uses as much as digits as its factorization.

161414809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 161414809 is about 12704.9127899407. The cubic root of 161414809 is about 544.4789892175.

The spelling of 161414809 in words is "one hundred sixty-one million, four hundred fourteen thousand, eight hundred nine".