192661243 has 2 divisors, whose sum is σ = 192661244. Its totient is φ = 192661242.

The previous prime is 192661229. The next prime is 192661267. The reversal of 192661243 is 342166291.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (342166291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192661243 - 2¹³ = 192653051 is a prime.

It is equal to p_10694743 and since 192661243 and 10694743 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 192661199 and 192661208.

It is not a weakly prime, because it can be changed into another prime (192661213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96330621 + 96330622.

It is an arithmetic number, because the mean of its divisors is an integer number (96330622).

Almost surely, 2^192661243 is an apocalyptic number.

192661243 is a deficient number, since it is larger than the sum of its proper divisors (1).

192661243 is an equidigital number, since it uses as much as digits as its factorization.

192661243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 192661243 is about 13880.2465035748. The cubic root of 192661243 is about 577.5613452821.

The spelling of 192661243 in words is "one hundred ninety-two million, six hundred sixty-one thousand, two hundred forty-three".