195238051 has 4 divisors (see below), whose sum is σ = 195294400. Its totient is φ = 195181704.

The previous prime is 195238049. The next prime is 195238079. The reversal of 195238051 is 150832591.

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 195238051 - 2¹ = 195238049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195237998 and 195238016.

It is not an unprimeable number, because it can be changed into a prime (195238951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22611 + ... + 30028.

It is an arithmetic number, because the mean of its divisors is an integer number (48823600).

Almost surely, 2^195238051 is an apocalyptic number.

195238051 is a deficient number, since it is larger than the sum of its proper divisors (56349).

195238051 is an equidigital number, since it uses as much as digits as its factorization.

195238051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56348.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 195238051 is about 13972.7610371036. The cubic root of 195238051 is about 580.1248750148.

The spelling of 195238051 in words is "one hundred ninety-five million, two hundred thirty-eight thousand, fifty-one".