195681974 has 16 divisors (see below), whose sum is σ = 303394128. Its totient is φ = 94584672.

The previous prime is 195681947. The next prime is 195681979. The reversal of 195681974 is 479186591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195681979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197 + ... + 20039.

It is an arithmetic number, because the mean of its divisors is an integer number (18962133).

Almost surely, 2^195681974 is an apocalyptic number.

195681974 is a deficient number, since it is larger than the sum of its proper divisors (107712154).

195681974 is a wasteful number, since it uses less digits than its factorization.

195681974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17039.

The product of its digits is 544320, while the sum is 50.

The square root of 195681974 is about 13988.6373174802. The cubic root of 195681974 is about 580.5642289772.

The spelling of 195681974 in words is "one hundred ninety-five million, six hundred eighty-one thousand, nine hundred seventy-four".