195381646 has 16 divisors (see below), whose sum is σ = 317882880. Its totient is φ = 89701120.

The previous prime is 195381631. The next prime is 195381649. The reversal of 195381646 is 646183591.

195381646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195381649) 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, 68686 + ... + 71473.

It is an arithmetic number, because the mean of its divisors is an integer number (19867680).

Almost surely, 2^195381646 is an apocalyptic number.

195381646 is a deficient number, since it is larger than the sum of its proper divisors (122501234).

195381646 is a wasteful number, since it uses less digits than its factorization.

195381646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140219.

The product of its digits is 155520, while the sum is 43.

The square root of 195381646 is about 13977.8984829623. The cubic root of 195381646 is about 580.2670648809.

The spelling of 195381646 in words is "one hundred ninety-five million, three hundred eighty-one thousand, six hundred forty-six".