11405613 has 16 divisors (see below), whose sum is σ = 16243200. Its totient is φ = 7103040.

The previous prime is 11405609. The next prime is 11405633. The reversal of 11405613 is 31650411.

It is not a de Polignac number, because 11405613 - 2² = 11405609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11405613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (1015200).

Almost surely, 2^11405613 is an apocalyptic number.

It is an amenable number.

11405613 is a deficient number, since it is larger than the sum of its proper divisors (4837587).

11405613 is a wasteful number, since it uses less digits than its factorization.

11405613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 11405613 is about 3377.2197144989. The cubic root of 11405613 is about 225.0986431669.

The spelling of 11405613 in words is "eleven million, four hundred five thousand, six hundred thirteen".