161445395 has 16 divisors (see below), whose sum is σ = 202632192. Its totient is φ = 123251040.

The previous prime is 161445391. The next prime is 161445397. The reversal of 161445395 is 593544161.

It is not a de Polignac number, because 161445395 - 2² = 161445391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161445391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56450 + ... + 59240.

It is an arithmetic number, because the mean of its divisors is an integer number (12664512).

Almost surely, 2^161445395 is an apocalyptic number.

161445395 is a deficient number, since it is larger than the sum of its proper divisors (41186797).

161445395 is a wasteful number, since it uses less digits than its factorization.

161445395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322.

The product of its digits is 64800, while the sum is 38.

The square root of 161445395 is about 12706.1164405179. The cubic root of 161445395 is about 544.5133776001.

The spelling of 161445395 in words is "one hundred sixty-one million, four hundred forty-five thousand, three hundred ninety-five".