195126889 has 4 divisors (see below), whose sum is σ = 195353856. Its totient is φ = 194899924.

The previous prime is 195126887. The next prime is 195126907. The reversal of 195126889 is 988621591.

195126889 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.

It is a cyclic number.

It is not a de Polignac number, because 195126889 - 2¹ = 195126887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195126887) 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, 112189 + ... + 113914.

It is an arithmetic number, because the mean of its divisors is an integer number (48838464).

Almost surely, 2^195126889 is an apocalyptic number.

It is an amenable number.

195126889 is a deficient number, since it is larger than the sum of its proper divisors (226967).

195126889 is an equidigital number, since it uses as much as digits as its factorization.

195126889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226966.

The product of its digits is 311040, while the sum is 49.

The square root of 195126889 is about 13968.7826599171. The cubic root of 195126889 is about 580.0147528947.

The spelling of 195126889 in words is "one hundred ninety-five million, one hundred twenty-six thousand, eight hundred eighty-nine".