195000061 has 4 divisors (see below), whose sum is σ = 195197824. Its totient is φ = 194802300.

The previous prime is 195000023. The next prime is 195000079. The reversal of 195000061 is 160000591.

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 195000061 - 2⁷ = 194999933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194999996 and 195000041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195000161) 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, 97395 + ... + 99376.

It is an arithmetic number, because the mean of its divisors is an integer number (48799456).

Almost surely, 2^195000061 is an apocalyptic number.

It is an amenable number.

195000061 is a deficient number, since it is larger than the sum of its proper divisors (197763).

195000061 is an equidigital number, since it uses as much as digits as its factorization.

195000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197762.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 195000061 is about 13964.2422279191. The cubic root of 195000061 is about 579.8890602320.

The spelling of 195000061 in words is "one hundred ninety-five million, sixty-one", and thus it is an aban number.