195198215 has 8 divisors (see below), whose sum is σ = 234320928. Its totient is φ = 156103200.

The previous prime is 195198209. The next prime is 195198221. The reversal of 195198215 is 512891591.

It is an interprime number because it is at equal distance from previous prime (195198209) and next prime (195198221).

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

It is a de Polignac number, because none of the positive numbers 2^k-195198215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14765 + ... + 24665.

It is an arithmetic number, because the mean of its divisors is an integer number (29290116).

Almost surely, 2^195198215 is an apocalyptic number.

195198215 is a deficient number, since it is larger than the sum of its proper divisors (39122713).

195198215 is an equidigital number, since it uses as much as digits as its factorization.

195198215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13849.

The product of its digits is 32400, while the sum is 41.

The square root of 195198215 is about 13971.3354766107. The cubic root of 195198215 is about 580.0854164728.

The spelling of 195198215 in words is "one hundred ninety-five million, one hundred ninety-eight thousand, two hundred fifteen".