191927054 has 24 divisors (see below), whose sum is σ = 317450784. Its totient is φ = 86961600.

The previous prime is 191927051. The next prime is 191927063. The reversal of 191927054 is 450729191.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 191926999 and 191927017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191927051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87734 + ... + 89894.

It is an arithmetic number, because the mean of its divisors is an integer number (13227116).

Almost surely, 2^191927054 is an apocalyptic number.

191927054 is a deficient number, since it is larger than the sum of its proper divisors (125523730).

191927054 is a wasteful number, since it uses less digits than its factorization.

191927054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 191927054 is about 13853.7739984453. The cubic root of 191927054 is about 576.8267589122.

The spelling of 191927054 in words is "one hundred ninety-one million, nine hundred twenty-seven thousand, fifty-four".