195780097 has 8 divisors (see below), whose sum is σ = 205114112. Its totient is φ = 186634800.

The previous prime is 195780089. The next prime is 195780133. The reversal of 195780097 is 790087591.

195780097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 195780097 - 2³ = 195780089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195780017) 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, 45054 + ... + 49207.

It is an arithmetic number, because the mean of its divisors is an integer number (25639264).

Almost surely, 2^195780097 is an apocalyptic number.

It is an amenable number.

195780097 is a deficient number, since it is larger than the sum of its proper divisors (9334015).

195780097 is an equidigital number, since it uses as much as digits as its factorization.

195780097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94359.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 195780097 is about 13992.1441173253. The cubic root of 195780097 is about 580.6612523659.

The spelling of 195780097 in words is "one hundred ninety-five million, seven hundred eighty thousand, ninety-seven".