192945921 has 8 divisors (see below), whose sum is σ = 294012864. Its totient is φ = 110254800.

The previous prime is 192945853. The next prime is 192945923. The reversal of 192945921 is 129549291.

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

It is not a de Polignac number, because 192945921 - 2⁷ = 192945793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (192945923) 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, 4593930 + ... + 4593971.

It is an arithmetic number, because the mean of its divisors is an integer number (36751608).

Almost surely, 2^192945921 is an apocalyptic number.

It is an amenable number.

192945921 is a deficient number, since it is larger than the sum of its proper divisors (101066943).

192945921 is an equidigital number, since it uses as much as digits as its factorization.

192945921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187911.

The product of its digits is 58320, while the sum is 42.

The square root of 192945921 is about 13890.4975072889. The cubic root of 192945921 is about 577.8456752459.

The spelling of 192945921 in words is "one hundred ninety-two million, nine hundred forty-five thousand, nine hundred twenty-one".