195901406 has 4 divisors (see below), whose sum is σ = 293852112. Its totient is φ = 97950702.

The previous prime is 195901393. The next prime is 195901411. The reversal of 195901406 is 604109591.

It is a semiprime because it is the product of two primes.

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, 48975350 + ... + 48975353.

It is an arithmetic number, because the mean of its divisors is an integer number (73463028).

Almost surely, 2^195901406 is an apocalyptic number.

195901406 is a deficient number, since it is larger than the sum of its proper divisors (97950706).

195901406 is an equidigital number, since it uses as much as digits as its factorization.

195901406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97950705.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 195901406 is about 13996.4783427832. The cubic root of 195901406 is about 580.7811571186.

The spelling of 195901406 in words is "one hundred ninety-five million, nine hundred one thousand, four hundred six".