161468399 has 2 divisors, whose sum is σ = 161468400. Its totient is φ = 161468398.

The previous prime is 161468393. The next prime is 161468423. The reversal of 161468399 is 993864161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161468399 - 2¹⁶ = 161402863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161468393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80734199 + 80734200.

It is an arithmetic number, because the mean of its divisors is an integer number (80734200).

Almost surely, 2^161468399 is an apocalyptic number.

161468399 is a deficient number, since it is larger than the sum of its proper divisors (1).

161468399 is an equidigital number, since it uses as much as digits as its factorization.

161468399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 161468399 is about 12707.0216415964. The cubic root of 161468399 is about 544.5392385439.

The spelling of 161468399 in words is "one hundred sixty-one million, four hundred sixty-eight thousand, three hundred ninety-nine".