195764949 has 6 divisors (see below), whose sum is σ = 282771606. Its totient is φ = 130509960.

The previous prime is 195764927. The next prime is 195764951. The reversal of 195764949 is 949467591.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 187964100 + 7800849 = 13710^2 + 2793^2 .

It is not a de Polignac number, because 195764949 - 2¹⁵ = 195732181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195764895 and 195764904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195764909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10875822 + ... + 10875839.

It is an arithmetic number, because the mean of its divisors is an integer number (47128601).

Almost surely, 2^195764949 is an apocalyptic number.

It is an amenable number.

195764949 is a deficient number, since it is larger than the sum of its proper divisors (87006657).

195764949 is a wasteful number, since it uses less digits than its factorization.

195764949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21751667 (or 21751664 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 195764949 is about 13991.6028031102. The cubic root of 195764949 is about 580.6462762377.

The spelling of 195764949 in words is "one hundred ninety-five million, seven hundred sixty-four thousand, nine hundred forty-nine".