195664029 has 32 divisors (see below), whose sum is σ = 294174720. Its totient is φ = 114638400.

The previous prime is 195664019. The next prime is 195664037. The reversal of 195664029 is 920466591.

It is a happy number.

It is not a de Polignac number, because 195664029 - 2⁵ = 195663997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195664009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232792 + ... + 233630.

It is an arithmetic number, because the mean of its divisors is an integer number (9192960).

Almost surely, 2^195664029 is an apocalyptic number.

It is an amenable number.

195664029 is a deficient number, since it is larger than the sum of its proper divisors (98510691).

195664029 is a wasteful number, since it uses less digits than its factorization.

195664029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 195664029 is about 13987.9958893331. The cubic root of 195664029 is about 580.5464815691.

The spelling of 195664029 in words is "one hundred ninety-five million, six hundred sixty-four thousand, twenty-nine".