11609142 has 16 divisors (see below), whose sum is σ = 23449392. Its totient is φ = 3831200.

The previous prime is 11609137. The next prime is 11609189. The reversal of 11609142 is 24190611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8973 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (1465587).

Almost surely, 2^11609142 is an apocalyptic number.

11609142 is an abundant number, since it is smaller than the sum of its proper divisors (11840250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11609142 is a wasteful number, since it uses less digits than its factorization.

11609142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19263.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11609142 is about 3407.2191006743. The cubic root of 11609142 is about 226.4296912992.

Adding to 11609142 its reverse (24190611), we get a palindrome (35799753).

The spelling of 11609142 in words is "eleven million, six hundred nine thousand, one hundred forty-two".