195609601 has 4 divisors (see below), whose sum is σ = 213392304. Its totient is φ = 177826900.

The previous prime is 195609577. The next prime is 195609607. The reversal of 195609601 is 106906591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195609601 - 2⁵ = 195609569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195609607) 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, 8891335 + ... + 8891356.

It is an arithmetic number, because the mean of its divisors is an integer number (53348076).

Almost surely, 2^195609601 is an apocalyptic number.

195609601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

195609601 is a deficient number, since it is larger than the sum of its proper divisors (17782703).

195609601 is a wasteful number, since it uses less digits than its factorization.

195609601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17782702.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 195609601 is about 13986.0502287100. The cubic root of 195609601 is about 580.4926462365.

It can be divided in two parts, 19560 and 9601, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 195609601 in words is "one hundred ninety-five million, six hundred nine thousand, six hundred one".