11512142 has 8 divisors (see below), whose sum is σ = 17293800. Its totient is φ = 5747544.

The previous prime is 11512097. The next prime is 11512147. The reversal of 11512142 is 24121511.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11512142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512147) 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, 2417 + ... + 5372.

It is an arithmetic number, because the mean of its divisors is an integer number (2161725).

Almost surely, 2^11512142 is an apocalyptic number.

11512142 is a deficient number, since it is larger than the sum of its proper divisors (5781658).

11512142 is an equidigital number, since it uses as much as digits as its factorization.

11512142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8530.

The product of its digits is 80, while the sum is 17.

The square root of 11512142 is about 3392.9547594980. The cubic root of 11512142 is about 225.7972834377.

Adding to 11512142 its reverse (24121511), we get a palindrome (35633653).

The spelling of 11512142 in words is "eleven million, five hundred twelve thousand, one hundred forty-two".