161095399 has 8 divisors (see below), whose sum is σ = 164110752. Its totient is φ = 158108160.

The previous prime is 161095397. The next prime is 161095411. The reversal of 161095399 is 993590161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161095399 - 2¹ = 161095397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161095393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4719 + ... + 18559.

It is an arithmetic number, because the mean of its divisors is an integer number (20513844).

Almost surely, 2^161095399 is an apocalyptic number.

161095399 is a deficient number, since it is larger than the sum of its proper divisors (3015353).

161095399 is a wasteful number, since it uses less digits than its factorization.

161095399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14057.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 161095399 is about 12692.3362309702. The cubic root of 161095399 is about 544.1196110528.

The spelling of 161095399 in words is "one hundred sixty-one million, ninety-five thousand, three hundred ninety-nine".