11426501 has 2 divisors, whose sum is σ = 11426502. Its totient is φ = 11426500.

The previous prime is 11426491. The next prime is 11426509. The reversal of 11426501 is 10562411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5997601 + 5428900 = 2449^2 + 2330^2 .

It is an emirp because it is prime and its reverse (10562411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11426501 - 2¹⁸ = 11164357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11426509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5713250 + 5713251.

It is an arithmetic number, because the mean of its divisors is an integer number (5713251).

Almost surely, 2^11426501 is an apocalyptic number.

It is an amenable number.

11426501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11426501 is an equidigital number, since it uses as much as digits as its factorization.

11426501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 11426501 is about 3380.3107845285. The cubic root of 11426501 is about 225.2359730085.

Adding to 11426501 its reverse (10562411), we get a palindrome (21988912).

The spelling of 11426501 in words is "eleven million, four hundred twenty-six thousand, five hundred one".