11549142 has 40 divisors (see below), whose sum is σ = 28235592. Its totient is φ = 3499200.

The previous prime is 11549129. The next prime is 11549147. The reversal of 11549142 is 24194511.

11549142 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11549147) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1459 + ... + 5022.

Almost surely, 2^11549142 is an apocalyptic number.

11549142 is an abundant number, since it is smaller than the sum of its proper divisors (16686450).

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

11549142 is a wasteful number, since it uses less digits than its factorization.

11549142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6506 (or 6497 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 11549142 is about 3398.4028601683. The cubic root of 11549142 is about 226.0389287367.

It can be divided in two parts, 1154 and 9142, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 11549142 in words is "eleven million, five hundred forty-nine thousand, one hundred forty-two".