11242609 has 9 divisors (see below), whose sum is σ = 13105497. Its totient is φ = 9616404.

The previous prime is 11242601. The next prime is 11242619. The reversal of 11242609 is 90624211.

The square root of 11242609 is 3353.

It is a perfect power (a square), and thus also a powerful number.

11242609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11242609 - 2³ = 11242601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11242601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23232 + ... + 23710.

Almost surely, 2^11242609 is an apocalyptic number.

11242609 is the 3353-rd square number.

11242609 is the 1677-th centered octagonal number.

It is an amenable number.

11242609 is a deficient number, since it is larger than the sum of its proper divisors (1862888).

11242609 is an frugal number, since it uses more digits than its factorization.

11242609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The cubic root of 11242609 is about 224.0211568558.

Multiplying 11242609 by its sum of digits (25), we get a square (281065225 = 16765²).

The spelling of 11242609 in words is "eleven million, two hundred forty-two thousand, six hundred nine".