195811054 has 8 divisors (see below), whose sum is σ = 294936048. Its totient is φ = 97499040.

The previous prime is 195811019. The next prime is 195811061. The reversal of 195811054 is 450118591.

It is a sphenic number, since it is the product of 3 distinct 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 in 3 ways as a sum of consecutive naturals, for example, 202642 + ... + 203605.

It is an arithmetic number, because the mean of its divisors is an integer number (36867006).

Almost surely, 2^195811054 is an apocalyptic number.

195811054 is a deficient number, since it is larger than the sum of its proper divisors (99124994).

195811054 is a wasteful number, since it uses less digits than its factorization.

195811054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406490.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 195811054 is about 13993.2503014846. The cubic root of 195811054 is about 580.6918557203.

The spelling of 195811054 in words is "one hundred ninety-five million, eight hundred eleven thousand, fifty-four".