195802069 has 2 divisors, whose sum is σ = 195802070. Its totient is φ = 195802068.

The previous prime is 195802031. The next prime is 195802109. The reversal of 195802069 is 960208591.

It is an a-pointer prime, because the next prime (195802109) can be obtained adding 195802069 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187333969 + 8468100 = 13687^2 + 2910^2 .

It is a cyclic number.

It is not a de Polignac number, because 195802069 - 2¹⁷ = 195670997 is a prime.

It is a super-2 number, since 2×195802069² = 76676900449361522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195802969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97901034 + 97901035.

It is an arithmetic number, because the mean of its divisors is an integer number (97901035).

Almost surely, 2^195802069 is an apocalyptic number.

It is an amenable number.

195802069 is a deficient number, since it is larger than the sum of its proper divisors (1).

195802069 is an equidigital number, since it uses as much as digits as its factorization.

195802069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 195802069 is about 13992.9292501606. The cubic root of 195802069 is about 580.6829736951.

The spelling of 195802069 in words is "one hundred ninety-five million, eight hundred two thousand, sixty-nine".