2192742547 has 4 divisors (see below), whose sum is σ = 2213235576. Its totient is φ = 2172249520.

The previous prime is 2192742529. The next prime is 2192742613. The reversal of 2192742547 is 7452472912.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2192742547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2192742527) 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 3 ways as a sum of consecutive naturals, for example, 10246354 + ... + 10246567.

It is an arithmetic number, because the mean of its divisors is an integer number (553308894).

Almost surely, 2^2192742547 is an apocalyptic number.

2192742547 is a deficient number, since it is larger than the sum of its proper divisors (20493029).

2192742547 is a wasteful number, since it uses less digits than its factorization.

2192742547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20493028.

The product of its digits is 282240, while the sum is 43.

The square root of 2192742547 is about 46826.7289803591. The cubic root of 2192742547 is about 1299.1597226698.

The spelling of 2192742547 in words is "two billion, one hundred ninety-two million, seven hundred forty-two thousand, five hundred forty-seven".