192005421 has 8 divisors (see below), whose sum is σ = 256579200. Its totient is φ = 127717632.

The previous prime is 192005383. The next prime is 192005447. The reversal of 192005421 is 124500291.

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

It is not a de Polignac number, because 192005421 - 2¹¹ = 192003373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 192005391 and 192005400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192005461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69925 + ... + 72618.

It is an arithmetic number, because the mean of its divisors is an integer number (32072400).

Almost surely, 2^192005421 is an apocalyptic number.

It is an amenable number.

192005421 is a deficient number, since it is larger than the sum of its proper divisors (64573779).

192005421 is a wasteful number, since it uses less digits than its factorization.

192005421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142995.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 192005421 is about 13856.6020726584. The cubic root of 192005421 is about 576.9052575406.

The spelling of 192005421 in words is "one hundred ninety-two million, five thousand, four hundred twenty-one".