195134709 has 24 divisors (see below), whose sum is σ = 330175008. Its totient is φ = 101367840.

The previous prime is 195134689. The next prime is 195134729. The reversal of 195134709 is 907431591.

It is a happy number.

195134709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (195134689) and next prime (195134729).

It is not a de Polignac number, because 195134709 - 2⁷ = 195134581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195134729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58722 + ... + 61955.

It is an arithmetic number, because the mean of its divisors is an integer number (13757292).

Almost surely, 2^195134709 is an apocalyptic number.

It is an amenable number.

195134709 is a deficient number, since it is larger than the sum of its proper divisors (135040299).

195134709 is a wasteful number, since it uses less digits than its factorization.

195134709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120705 (or 120698 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 195134709 is about 13969.0625669728. The cubic root of 195134709 is about 580.0225011088.

The spelling of 195134709 in words is "one hundred ninety-five million, one hundred thirty-four thousand, seven hundred nine".