195418151 has 4 divisors (see below), whose sum is σ = 199576032. Its totient is φ = 191260272.

The previous prime is 195418147. The next prime is 195418159. The reversal of 195418151 is 151814591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195418151 - 2² = 195418147 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 (195418159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2078870 + ... + 2078963.

It is an arithmetic number, because the mean of its divisors is an integer number (49894008).

Almost surely, 2^195418151 is an apocalyptic number.

195418151 is a deficient number, since it is larger than the sum of its proper divisors (4157881).

195418151 is an equidigital number, since it uses as much as digits as its factorization.

195418151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157880.

The product of its digits is 7200, while the sum is 35.

The square root of 195418151 is about 13979.2042334319. The cubic root of 195418151 is about 580.3032015575.

The spelling of 195418151 in words is "one hundred ninety-five million, four hundred eighteen thousand, one hundred fifty-one".