11640313 has 2 divisors, whose sum is σ = 11640314. Its totient is φ = 11640312.

The previous prime is 11640271. The next prime is 11640329. The reversal of 11640313 is 31304611.

11640313 = 2412² + 2413².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5822569 + 5817744 = 2413^2 + 2412^2 .

It is a cyclic number.

It is not a de Polignac number, because 11640313 - 2¹³ = 11632121 is a prime.

It is not a weakly prime, because it can be changed into another prime (11640613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820156 + 5820157.

It is an arithmetic number, because the mean of its divisors is an integer number (5820157).

Almost surely, 2^11640313 is an apocalyptic number.

11640313 is the 2413-rd centered square number.

It is an amenable number.

11640313 is a deficient number, since it is larger than the sum of its proper divisors (1).

11640313 is an equidigital number, since it uses as much as digits as its factorization.

11640313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 11640313 is about 3411.7902925004. The cubic root of 11640313 is about 226.6321677118.

Adding to 11640313 its reverse (31304611), we get a palindrome (42944924).

The spelling of 11640313 in words is "eleven million, six hundred forty thousand, three hundred thirteen".