195782401 has 4 divisors (see below), whose sum is σ = 199948032. Its totient is φ = 191616772.

The previous prime is 195782381. The next prime is 195782407. The reversal of 195782401 is 104287591.

195782401 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104287591 = 83 ⋅1256477.

It is a cyclic number.

It is not a de Polignac number, because 195782401 - 2⁹ = 195781889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195782407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082745 + ... + 2082838.

It is an arithmetic number, because the mean of its divisors is an integer number (49987008).

Almost surely, 2^195782401 is an apocalyptic number.

It is an amenable number.

195782401 is a deficient number, since it is larger than the sum of its proper divisors (4165631).

195782401 is an equidigital number, since it uses as much as digits as its factorization.

195782401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165630.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 195782401 is about 13992.2264489966. The cubic root of 195782401 is about 580.6635301567.

The spelling of 195782401 in words is "one hundred ninety-five million, seven hundred eighty-two thousand, four hundred one".