195550345 has 4 divisors (see below), whose sum is σ = 234660420. Its totient is φ = 156440272.

The previous prime is 195550339. The next prime is 195550349. The reversal of 195550345 is 543055591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543055591 = 13 ⋅41773507.

It can be written as a sum of positive squares in 2 ways, for example, as 88303609 + 107246736 = 9397^2 + 10356^2 .

It is a cyclic number.

It is not a de Polignac number, because 195550345 - 2¹³ = 195542153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195550349) 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, 19555030 + ... + 19555039.

It is an arithmetic number, because the mean of its divisors is an integer number (58665105).

Almost surely, 2^195550345 is an apocalyptic number.

It is an amenable number.

195550345 is a deficient number, since it is larger than the sum of its proper divisors (39110075).

195550345 is an equidigital number, since it uses as much as digits as its factorization.

195550345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39110074.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 195550345 is about 13983.9316717438. The cubic root of 195550345 is about 580.4340241205.

The spelling of 195550345 in words is "one hundred ninety-five million, five hundred fifty thousand, three hundred forty-five".