192009081 has 8 divisors (see below), whose sum is σ = 279285984. Its totient is φ = 116369120.

The previous prime is 192009073. The next prime is 192009091. The reversal of 192009081 is 180900291.

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 192009081 - 2³ = 192009073 is a prime.

It is a super-2 number, since 2×192009081² = 73734974372929122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (192009001) 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 7 ways as a sum of consecutive naturals, for example, 2909196 + ... + 2909261.

It is an arithmetic number, because the mean of its divisors is an integer number (34910748).

Almost surely, 2^192009081 is an apocalyptic number.

192009081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

192009081 is a deficient number, since it is larger than the sum of its proper divisors (87276903).

192009081 is a wasteful number, since it uses less digits than its factorization.

192009081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818471.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 192009081 is about 13856.7341390387. The cubic root of 192009081 is about 576.9089231659.

The spelling of 192009081 in words is "one hundred ninety-two million, nine thousand, eighty-one".