195774494 has 4 divisors (see below), whose sum is σ = 293661744. Its totient is φ = 97887246.

The previous prime is 195774473. The next prime is 195774497. The reversal of 195774494 is 494477591.

195774494 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, and also an emirpimes, since its reverse is a distinct semiprime: 494477591 = 2731 ⋅181061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195774497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48943622 + ... + 48943625.

It is an arithmetic number, because the mean of its divisors is an integer number (73415436).

Almost surely, 2^195774494 is an apocalyptic number.

195774494 is a deficient number, since it is larger than the sum of its proper divisors (97887250).

195774494 is an equidigital number, since it uses as much as digits as its factorization.

195774494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97887249.

The product of its digits is 1270080, while the sum is 50.

The square root of 195774494 is about 13991.9438963998. The cubic root of 195774494 is about 580.6557130285.

The spelling of 195774494 in words is "one hundred ninety-five million, seven hundred seventy-four thousand, four hundred ninety-four".