195263049 has 4 divisors (see below), whose sum is σ = 260350736. Its totient is φ = 130175364.

The previous prime is 195263041. The next prime is 195263053. The reversal of 195263049 is 940362591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 195263049 - 2³ = 195263041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 195262998 and 195263016.

It is not an unprimeable number, because it can be changed into a prime (195263041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32543839 + ... + 32543844.

It is an arithmetic number, because the mean of its divisors is an integer number (65087684).

Almost surely, 2^195263049 is an apocalyptic number.

It is an amenable number.

195263049 is a deficient number, since it is larger than the sum of its proper divisors (65087687).

195263049 is an equidigital number, since it uses as much as digits as its factorization.

195263049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65087686.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 195263049 is about 13973.6555346123. The cubic root of 195263049 is about 580.1496334104.

The spelling of 195263049 in words is "one hundred ninety-five million, two hundred sixty-three thousand, forty-nine".