11222539 has 2 divisors, whose sum is σ = 11222540. Its totient is φ = 11222538.

The previous prime is 11222501. The next prime is 11222573. The reversal of 11222539 is 93522211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11222539 - 2¹¹ = 11220491 is a prime.

It is equal to p₇₄₀₂₅₇ and since 11222539 and 740257 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11222579) 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, 5611269 + 5611270.

It is an arithmetic number, because the mean of its divisors is an integer number (5611270).

Almost surely, 2^11222539 is an apocalyptic number.

11222539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222539 is an equidigital number, since it uses as much as digits as its factorization.

11222539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 11222539 is about 3350.0058208905. The cubic root of 11222539 is about 223.8877719593.

The spelling of 11222539 in words is "eleven million, two hundred twenty-two thousand, five hundred thirty-nine".