195829261 has 2 divisors, whose sum is σ = 195829262. Its totient is φ = 195829260.

The previous prime is 195829259. The next prime is 195829297. The reversal of 195829261 is 162928591.

195829261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132388036 + 63441225 = 11506^2 + 7965^2 .

It is a cyclic number.

It is not a de Polignac number, because 195829261 - 2¹ = 195829259 is a prime.

It is a super-2 number, since 2×195829261² = 76698198927612242, which contains 22 as substring.

Together with 195829259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195829211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97914630 + 97914631.

It is an arithmetic number, because the mean of its divisors is an integer number (97914631).

Almost surely, 2^195829261 is an apocalyptic number.

It is an amenable number.

195829261 is a deficient number, since it is larger than the sum of its proper divisors (1).

195829261 is an equidigital number, since it uses as much as digits as its factorization.

195829261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 195829261 is about 13993.9008500132. The cubic root of 195829261 is about 580.7098532213.

The spelling of 195829261 in words is "one hundred ninety-five million, eight hundred twenty-nine thousand, two hundred sixty-one".