195561374 has 4 divisors (see below), whose sum is σ = 293342064. Its totient is φ = 97780686.

The previous prime is 195561371. The next prime is 195561383. The reversal of 195561374 is 473165591.

195561374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195561371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48890342 + ... + 48890345.

It is an arithmetic number, because the mean of its divisors is an integer number (73335516).

Almost surely, 2^195561374 is an apocalyptic number.

195561374 is a deficient number, since it is larger than the sum of its proper divisors (97780690).

195561374 is an equidigital number, since it uses as much as digits as its factorization.

195561374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97780689.

The product of its digits is 113400, while the sum is 41.

The square root of 195561374 is about 13984.3260116460. The cubic root of 195561374 is about 580.4449360359. Note that the first 3 decimals are identical.

The spelling of 195561374 in words is "one hundred ninety-five million, five hundred sixty-one thousand, three hundred seventy-four".