195173051 has 2 divisors, whose sum is σ = 195173052. Its totient is φ = 195173050.

The previous prime is 195172981. The next prime is 195173053. The reversal of 195173051 is 150371591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195173051 is a prime.

Together with 195173053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 195172999 and 195173017.

It is not a weakly prime, because it can be changed into another prime (195173053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97586525 + 97586526.

It is an arithmetic number, because the mean of its divisors is an integer number (97586526).

Almost surely, 2^195173051 is an apocalyptic number.

195173051 is a deficient number, since it is larger than the sum of its proper divisors (1).

195173051 is an equidigital number, since it uses as much as digits as its factorization.

195173051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 32.

The square root of 195173051 is about 13970.4348894371. The cubic root of 195173051 is about 580.0604881425.

The spelling of 195173051 in words is "one hundred ninety-five million, one hundred seventy-three thousand, fifty-one".