195740049 has 4 divisors (see below), whose sum is σ = 260986736. Its totient is φ = 130493364.

The previous prime is 195740029. The next prime is 195740059. The reversal of 195740049 is 940047591.

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 195740049 - 2¹¹ = 195738001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195739989 and 195740016.

It is not an unprimeable number, because it can be changed into a prime (195740029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32623339 + ... + 32623344.

It is an arithmetic number, because the mean of its divisors is an integer number (65246684).

Almost surely, 2^195740049 is an apocalyptic number.

It is an amenable number.

195740049 is a deficient number, since it is larger than the sum of its proper divisors (65246687).

195740049 is an equidigital number, since it uses as much as digits as its factorization.

195740049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65246686.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 195740049 is about 13990.7129553858. The cubic root of 195740049 is about 580.6216570785.

The spelling of 195740049 in words is "one hundred ninety-five million, seven hundred forty thousand, forty-nine".