195068737 has 4 divisors (see below), whose sum is σ = 197816256. Its totient is φ = 192321220.

The previous prime is 195068723. The next prime is 195068777. The reversal of 195068737 is 737860591.

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 a cyclic number.

It is not a de Polignac number, because 195068737 - 2²³ = 186680129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195068717) 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, 1373653 + ... + 1373794.

It is an arithmetic number, because the mean of its divisors is an integer number (49454064).

Almost surely, 2^195068737 is an apocalyptic number.

It is an amenable number.

195068737 is a deficient number, since it is larger than the sum of its proper divisors (2747519).

195068737 is an equidigital number, since it uses as much as digits as its factorization.

195068737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747518.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 195068737 is about 13966.7010063221. The cubic root of 195068737 is about 579.9571282223.

The spelling of 195068737 in words is "one hundred ninety-five million, sixty-eight thousand, seven hundred thirty-seven".