195740345 has 4 divisors (see below), whose sum is σ = 234888420. Its totient is φ = 156592272.

The previous prime is 195740341. The next prime is 195740353. The reversal of 195740345 is 543047591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543047591 = 29 ⋅18725779.

It can be written as a sum of positive squares in 2 ways, for example, as 80048809 + 115691536 = 8947^2 + 10756^2 .

It is a cyclic number.

It is not a de Polignac number, because 195740345 - 2² = 195740341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195740299 and 195740308.

It is not an unprimeable number, because it can be changed into a prime (195740341) 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, 19574030 + ... + 19574039.

It is an arithmetic number, because the mean of its divisors is an integer number (58722105).

Almost surely, 2^195740345 is an apocalyptic number.

It is an amenable number.

195740345 is a deficient number, since it is larger than the sum of its proper divisors (39148075).

195740345 is an equidigital number, since it uses as much as digits as its factorization.

195740345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39148074.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 195740345 is about 13990.7235338277. The cubic root of 195740345 is about 580.6219497523.

The spelling of 195740345 in words is "one hundred ninety-five million, seven hundred forty thousand, three hundred forty-five".