11138142 has 32 divisors (see below), whose sum is σ = 24030720. Its totient is φ = 3430080.

The previous prime is 11138129. The next prime is 11138143. The reversal of 11138142 is 24183111.

It is a happy number.

It is a super-3 number, since 3×11138142³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138143) 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, 3483 + ... + 5865.

It is an arithmetic number, because the mean of its divisors is an integer number (750960).

Almost surely, 2^11138142 is an apocalyptic number.

11138142 is an abundant number, since it is smaller than the sum of its proper divisors (12892578).

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

11138142 is a wasteful number, since it uses less digits than its factorization.

11138142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448.

The product of its digits is 192, while the sum is 21.

The square root of 11138142 is about 3337.3855036540. The cubic root of 11138142 is about 223.3251238288.

The spelling of 11138142 in words is "eleven million, one hundred thirty-eight thousand, one hundred forty-two".