1366506233 has 2 divisors, whose sum is σ = 1366506234. Its totient is φ = 1366506232.

The previous prime is 1366506181. The next prime is 1366506259. The reversal of 1366506233 is 3326056631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1351077049 + 15429184 = 36757^2 + 3928^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366506233 - 2⁸ = 1366505977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1366506193 and 1366506202.

It is not a weakly prime, because it can be changed into another prime (1366506283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683253116 + 683253117.

It is an arithmetic number, because the mean of its divisors is an integer number (683253117).

Almost surely, 2^1366506233 is an apocalyptic number.

It is an amenable number.

1366506233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366506233 is an equidigital number, since it uses as much as digits as its factorization.

1366506233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 1366506233 is about 36966.2850851962. The cubic root of 1366506233 is about 1109.6956211659.

The spelling of 1366506233 in words is "one billion, three hundred sixty-six million, five hundred six thousand, two hundred thirty-three".