195826261 has 4 divisors (see below), whose sum is σ = 195887692. Its totient is φ = 195764832.

The previous prime is 195826229. The next prime is 195826273. The reversal of 195826261 is 162628591.

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

It can be written as a sum of positive squares in 2 ways, for example, as 157000900 + 38825361 = 12530^2 + 6231^2 .

It is a cyclic number.

It is not a de Polignac number, because 195826261 - 2⁵ = 195826229 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 (195826061) 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, 25656 + ... + 32401.

It is an arithmetic number, because the mean of its divisors is an integer number (48971923).

Almost surely, 2^195826261 is an apocalyptic number.

It is an amenable number.

195826261 is a deficient number, since it is larger than the sum of its proper divisors (61431).

195826261 is an equidigital number, since it uses as much as digits as its factorization.

195826261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61430.

The product of its digits is 51840, while the sum is 40.

The square root of 195826261 is about 13993.7936600480. The cubic root of 195826261 is about 580.7068878176.

The spelling of 195826261 in words is "one hundred ninety-five million, eight hundred twenty-six thousand, two hundred sixty-one".