195742797 has 8 divisors (see below), whose sum is σ = 261449760. Its totient is φ = 130265520.

The previous prime is 195742793. The next prime is 195742817. The reversal of 195742797 is 797247591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195742797 - 2² = 195742793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195742793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55422 + ... + 58847.

It is an arithmetic number, because the mean of its divisors is an integer number (32681220).

Almost surely, 2^195742797 is an apocalyptic number.

It is an amenable number.

195742797 is a deficient number, since it is larger than the sum of its proper divisors (65706963).

195742797 is a wasteful number, since it uses less digits than its factorization.

195742797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114843.

The product of its digits is 1111320, while the sum is 51.

The square root of 195742797 is about 13990.8111630456. The cubic root of 195742797 is about 580.6243741870.

The spelling of 195742797 in words is "one hundred ninety-five million, seven hundred forty-two thousand, seven hundred ninety-seven".