195097907 has 4 divisors (see below), whose sum is σ = 196587336. Its totient is φ = 193608480.

The previous prime is 195097897. The next prime is 195097913. The reversal of 195097907 is 709790591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195097907 - 2⁶ = 195097843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195097927) 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, 744518 + ... + 744779.

It is an arithmetic number, because the mean of its divisors is an integer number (49146834).

Almost surely, 2^195097907 is an apocalyptic number.

195097907 is a deficient number, since it is larger than the sum of its proper divisors (1489429).

195097907 is a wasteful number, since it uses less digits than its factorization.

195097907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489428.

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 195097907 is about 13967.7452367947. The cubic root of 195097907 is about 579.9860351374.

The spelling of 195097907 in words is "one hundred ninety-five million, ninety-seven thousand, nine hundred seven".