192248989 has 4 divisors (see below), whose sum is σ = 194409180. Its totient is φ = 190088800.

The previous prime is 192248977. The next prime is 192248993. The reversal of 192248989 is 989842291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28536964 + 163712025 = 5342^2 + 12795^2 .

It is a cyclic number.

It is not a de Polignac number, because 192248989 - 2¹¹ = 192246941 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 (192248909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079962 + ... + 1080139.

It is an arithmetic number, because the mean of its divisors is an integer number (48602295).

Almost surely, 2^192248989 is an apocalyptic number.

It is an amenable number.

192248989 is a deficient number, since it is larger than the sum of its proper divisors (2160191).

192248989 is an equidigital number, since it uses as much as digits as its factorization.

192248989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160190.

The product of its digits is 746496, while the sum is 52.

The square root of 192248989 is about 13865.3881662217. The cubic root of 192248989 is about 577.1490983723.

The spelling of 192248989 in words is "one hundred ninety-two million, two hundred forty-eight thousand, nine hundred eighty-nine".