11534409 has 12 divisors (see below), whose sum is σ = 16692676. Its totient is φ = 7674912.

The previous prime is 11534399. The next prime is 11534423. The reversal of 11534409 is 90443511.

It can be written as a sum of positive squares in 2 ways, for example, as 5760000 + 5774409 = 2400^2 + 2403^2 .

It is not a de Polignac number, because 11534409 - 2¹⁵ = 11501641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11534009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5967 + ... + 7659.

Almost surely, 2^11534409 is an apocalyptic number.

It is an amenable number.

11534409 is a deficient number, since it is larger than the sum of its proper divisors (5158267).

11534409 is a wasteful number, since it uses less digits than its factorization.

11534409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 11534409 is about 3396.2345325375. The cubic root of 11534409 is about 225.9427701175.

The spelling of 11534409 in words is "eleven million, five hundred thirty-four thousand, four hundred nine".