11142115 has 4 divisors (see below), whose sum is σ = 13370544. Its totient is φ = 8913688.

The previous prime is 11142107. The next prime is 11142181. The reversal of 11142115 is 51124111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51124111 = 5437 ⋅9403.

It is a cyclic number.

It is not a de Polignac number, because 11142115 - 2³ = 11142107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114207 + ... + 1114216.

It is an arithmetic number, because the mean of its divisors is an integer number (3342636).

Almost surely, 2^11142115 is an apocalyptic number.

11142115 is a deficient number, since it is larger than the sum of its proper divisors (2228429).

11142115 is an equidigital number, since it uses as much as digits as its factorization.

11142115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228428.

The product of its digits is 40, while the sum is 16.

The square root of 11142115 is about 3337.9806769962. The cubic root of 11142115 is about 223.3516741948.

Adding to 11142115 its reverse (51124111), we get a palindrome (62266226).

The spelling of 11142115 in words is "eleven million, one hundred forty-two thousand, one hundred fifteen".