11564142 has 8 divisors (see below), whose sum is σ = 23128296. Its totient is φ = 3854712.

The previous prime is 11564129. The next prime is 11564143. The reversal of 11564142 is 24146511.

It is a happy number.

11564142 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 sphenic number, since it is the product of 3 distinct primes.

11564142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11564143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963673 + ... + 963684.

It is an arithmetic number, because the mean of its divisors is an integer number (2891037).

Almost surely, 2^11564142 is an apocalyptic number.

11564142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11564142 is a wasteful number, since it uses less digits than its factorization.

11564142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927362.

The product of its digits is 960, while the sum is 24.

The square root of 11564142 is about 3400.6090630944. The cubic root of 11564142 is about 226.1367460203.

The spelling of 11564142 in words is "eleven million, five hundred sixty-four thousand, one hundred forty-two".