195129079 has 8 divisors (see below), whose sum is σ = 203781600. Its totient is φ = 186490656.

The previous prime is 195129061. The next prime is 195129133. The reversal of 195129079 is 970921591.

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 195129079 - 2⁵ = 195129047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195129019) 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, 32889 + ... + 38365.

It is an arithmetic number, because the mean of its divisors is an integer number (25472700).

Almost surely, 2^195129079 is an apocalyptic number.

195129079 is a deficient number, since it is larger than the sum of its proper divisors (8652521).

195129079 is a wasteful number, since it uses less digits than its factorization.

195129079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 195129079 is about 13968.8610487756. The cubic root of 195129079 is about 580.0169228118.

The spelling of 195129079 in words is "one hundred ninety-five million, one hundred twenty-nine thousand, seventy-nine".