195366049 has 2 divisors, whose sum is σ = 195366050. Its totient is φ = 195366048.

The previous prime is 195366043. The next prime is 195366097. The reversal of 195366049 is 940663591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133633600 + 61732449 = 11560^2 + 7857^2 .

It is a cyclic number.

It is not a de Polignac number, because 195366049 - 2⁹ = 195365537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195365996 and 195366014.

It is not a weakly prime, because it can be changed into another prime (195366043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97683024 + 97683025.

It is an arithmetic number, because the mean of its divisors is an integer number (97683025).

Almost surely, 2^195366049 is an apocalyptic number.

It is an amenable number.

195366049 is a deficient number, since it is larger than the sum of its proper divisors (1).

195366049 is an equidigital number, since it uses as much as digits as its factorization.

195366049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 195366049 is about 13977.3405553417. The cubic root of 195366049 is about 580.2516238770.

The spelling of 195366049 in words is "one hundred ninety-five million, three hundred sixty-six thousand, forty-nine".