9191244141 has 12 divisors (see below), whose sum is σ = 13501263360. Its totient is φ = 6023639880.

The previous prime is 9191244133. The next prime is 9191244143. The reversal of 9191244141 is 1414421919.

9191244141 is a `hidden beast` number, since 91 + 91 + 2 + 441 + 41 = 666.

9191244141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9191244141 - 2³ = 9191244133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9191244096 and 9191244105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9191244143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8654125 + ... + 8655186.

It is an arithmetic number, because the mean of its divisors is an integer number (1125105280).

Almost surely, 2^9191244141 is an apocalyptic number.

It is an amenable number.

9191244141 is a deficient number, since it is larger than the sum of its proper divisors (4310019219).

9191244141 is a wasteful number, since it uses less digits than its factorization.

9191244141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17309376 (or 17309373 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 9191244141 is about 95870.9765309606. The cubic root of 9191244141 is about 2094.7141546237.

The spelling of 9191244141 in words is "nine billion, one hundred ninety-one million, two hundred forty-four thousand, one hundred forty-one".