161500195 has 8 divisors (see below), whose sum is σ = 194117040. Its totient is φ = 128988960.

The previous prime is 161500193. The next prime is 161500223. The reversal of 161500195 is 591005161.

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

It is not a de Polignac number, because 161500195 - 2¹ = 161500193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161500193) 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, 22996 + ... + 29185.

It is an arithmetic number, because the mean of its divisors is an integer number (24264630).

Almost surely, 2^161500195 is an apocalyptic number.

161500195 is a deficient number, since it is larger than the sum of its proper divisors (32616845).

161500195 is an equidigital number, since it uses as much as digits as its factorization.

161500195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52805.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 161500195 is about 12708.2726993089. The cubic root of 161500195 is about 544.5749793521.

The spelling of 161500195 in words is "one hundred sixty-one million, five hundred thousand, one hundred ninety-five".