11142215 has 8 divisors (see below), whose sum is σ = 15280800. Its totient is φ = 7640352.

The previous prime is 11142211. The next prime is 11142223. The reversal of 11142215 is 51224111.

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

It is a cyclic number.

It is not a de Polignac number, because 11142215 - 2² = 11142211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11142193 and 11142202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159140 + ... + 159209.

It is an arithmetic number, because the mean of its divisors is an integer number (1910100).

Almost surely, 2^11142215 is an apocalyptic number.

11142215 is a deficient number, since it is larger than the sum of its proper divisors (4138585).

11142215 is an equidigital number, since it uses as much as digits as its factorization.

11142215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318361.

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

The square root of 11142215 is about 3337.9956560787. The cubic root of 11142215 is about 223.3523423834.

Adding to 11142215 its reverse (51224111), we get a palindrome (62366326).

The spelling of 11142215 in words is "eleven million, one hundred forty-two thousand, two hundred fifteen".