1366090213 has 2 divisors, whose sum is σ = 1366090214. Its totient is φ = 1366090212.

The previous prime is 1366090169. The next prime is 1366090247. The reversal of 1366090213 is 3120906631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 890544964 + 475545249 = 29842^2 + 21807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366090213 - 2¹³ = 1366082021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366090013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683045106 + 683045107.

It is an arithmetic number, because the mean of its divisors is an integer number (683045107).

Almost surely, 2^1366090213 is an apocalyptic number.

It is an amenable number.

1366090213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366090213 is an equidigital number, since it uses as much as digits as its factorization.

1366090213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 1366090213 is about 36960.6576375475. The cubic root of 1366090213 is about 1109.5829975964.

Adding to 1366090213 its reverse (3120906631), we get a palindrome (4486996844).

The spelling of 1366090213 in words is "one billion, three hundred sixty-six million, ninety thousand, two hundred thirteen".