195157982 has 4 divisors (see below), whose sum is σ = 292736976. Its totient is φ = 97578990.

The previous prime is 195157969. The next prime is 195157997. The reversal of 195157982 is 289751591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289751591 = 757 ⋅382763.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48789494 + ... + 48789497.

It is an arithmetic number, because the mean of its divisors is an integer number (73184244).

Almost surely, 2^195157982 is an apocalyptic number.

195157982 is a deficient number, since it is larger than the sum of its proper divisors (97578994).

195157982 is an equidigital number, since it uses as much as digits as its factorization.

195157982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97578993.

The product of its digits is 226800, while the sum is 47.

The square root of 195157982 is about 13969.8955615280. The cubic root of 195157982 is about 580.0455592432.

The spelling of 195157982 in words is "one hundred ninety-five million, one hundred fifty-seven thousand, nine hundred eighty-two".