11559142 has 16 divisors (see below), whose sum is σ = 20040480. Its totient is φ = 4897728.

The previous prime is 11559137. The next prime is 11559157. The reversal of 11559142 is 24195511.

It is a super-3 number, since 3×11559142³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 11559142.

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, 3393 + ... + 5884.

It is an arithmetic number, because the mean of its divisors is an integer number (1252530).

Almost surely, 2^11559142 is an apocalyptic number.

11559142 is a deficient number, since it is larger than the sum of its proper divisors (8481338).

11559142 is an equidigital number, since it uses as much as digits as its factorization.

11559142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375.

The product of its digits is 1800, while the sum is 28.

The square root of 11559142 is about 3399.8738211881. The cubic root of 11559142 is about 226.1041496626.

It can be divided in two parts, 11 and 559142, that added together give a triangular number (559153 = T₁₀₅₇).

The spelling of 11559142 in words is "eleven million, five hundred fifty-nine thousand, one hundred forty-two".