161434667 has 2 divisors, whose sum is σ = 161434668. Its totient is φ = 161434666.

The previous prime is 161434649. The next prime is 161434699. The reversal of 161434667 is 766434161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161434667 - 2²⁴ = 144657451 is a prime.

It is a super-2 number, since 2×161434667² = 52122303418801778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161434667.

It is not a weakly prime, because it can be changed into another prime (161434607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80717333 + 80717334.

It is an arithmetic number, because the mean of its divisors is an integer number (80717334).

Almost surely, 2^161434667 is an apocalyptic number.

161434667 is a deficient number, since it is larger than the sum of its proper divisors (1).

161434667 is an equidigital number, since it uses as much as digits as its factorization.

161434667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 161434667 is about 12705.6942746156. The cubic root of 161434667 is about 544.5013164139.

The spelling of 161434667 in words is "one hundred sixty-one million, four hundred thirty-four thousand, six hundred sixty-seven".