195391241 has 8 divisors (see below), whose sum is σ = 202496520. Its totient is φ = 188310528.

The previous prime is 195391211. The next prime is 195391243. The reversal of 195391241 is 142193591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129846025 + 65545216 = 11395^2 + 8096^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 195391241 - 2⁶ = 195391177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195391243) 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, 10895 + ... + 22571.

It is an arithmetic number, because the mean of its divisors is an integer number (25312065).

Almost surely, 2^195391241 is an apocalyptic number.

It is an amenable number.

195391241 is a deficient number, since it is larger than the sum of its proper divisors (7105279).

195391241 is a wasteful number, since it uses less digits than its factorization.

195391241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12283.

The product of its digits is 9720, while the sum is 35.

The square root of 195391241 is about 13978.2416991552. The cubic root of 195391241 is about 580.2765635066.

The spelling of 195391241 in words is "one hundred ninety-five million, three hundred ninety-one thousand, two hundred forty-one".