192720233 has 2 divisors, whose sum is σ = 192720234. Its totient is φ = 192720232.

The previous prime is 192720193. The next prime is 192720239. The reversal of 192720233 is 332027291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139546969 + 53173264 = 11813^2 + 7292^2 .

It is an emirp because it is prime and its reverse (332027291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192720233 - 2¹² = 192716137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 192720196 and 192720205.

It is not a weakly prime, because it can be changed into another prime (192720239) 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 as a sum of consecutive naturals, namely, 96360116 + 96360117.

It is an arithmetic number, because the mean of its divisors is an integer number (96360117).

Almost surely, 2^192720233 is an apocalyptic number.

It is an amenable number.

192720233 is a deficient number, since it is larger than the sum of its proper divisors (1).

192720233 is an equidigital number, since it uses as much as digits as its factorization.

192720233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 192720233 is about 13882.3713032032. The cubic root of 192720233 is about 577.6202861577.

The spelling of 192720233 in words is "one hundred ninety-two million, seven hundred twenty thousand, two hundred thirty-three".