2192091421 has 8 divisors (see below), whose sum is σ = 2410942464. Its totient is φ = 1980415920.

The previous prime is 2192091413. The next prime is 2192091439. The reversal of 2192091421 is 1241902912.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2192091421 - 2³ = 2192091413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192091481) 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 7 ways as a sum of consecutive naturals, for example, 1793245 + ... + 1794466.

It is an arithmetic number, because the mean of its divisors is an integer number (301367808).

Almost surely, 2^2192091421 is an apocalyptic number.

It is an amenable number.

2192091421 is a deficient number, since it is larger than the sum of its proper divisors (218851043).

2192091421 is a wasteful number, since it uses less digits than its factorization.

2192091421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587771.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2192091421 is about 46819.7759605917. The cubic root of 2192091421 is about 1299.0311165370.

The spelling of 2192091421 in words is "two billion, one hundred ninety-two million, ninety-one thousand, four hundred twenty-one".