11423559 has 16 divisors (see below), whose sum is σ = 17458688. Its totient is φ = 6508512.

The previous prime is 11423557. The next prime is 11423569. The reversal of 11423559 is 95532411.

It is not a de Polignac number, because 11423559 - 2¹ = 11423557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9669 + ... + 10785.

It is an arithmetic number, because the mean of its divisors is an integer number (1091168).

Almost surely, 2^11423559 is an apocalyptic number.

11423559 is a deficient number, since it is larger than the sum of its proper divisors (6035129).

11423559 is a wasteful number, since it uses less digits than its factorization.

11423559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614.

The product of its digits is 5400, while the sum is 30.

The square root of 11423559 is about 3379.8755894263. The cubic root of 11423559 is about 225.2166407238.

The spelling of 11423559 in words is "eleven million, four hundred twenty-three thousand, five hundred fifty-nine".