11142270 has 24 divisors (see below), whose sum is σ = 28970136. Its totient is φ = 2971248.

The previous prime is 11142253. The next prime is 11142311. The reversal of 11142270 is 7224111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 61812 + ... + 61991.

It is an arithmetic number, because the mean of its divisors is an integer number (1207089).

Almost surely, 2^11142270 is an apocalyptic number.

11142270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11142270 is an abundant number, since it is smaller than the sum of its proper divisors (17827866).

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

11142270 is a wasteful number, since it uses less digits than its factorization.

11142270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123816 (or 123813 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 11142270 is about 3338.0038945454. The cubic root of 11142270 is about 223.3527098854.

Adding to 11142270 its reverse (7224111), we get a palindrome (18366381).

The spelling of 11142270 in words is "eleven million, one hundred forty-two thousand, two hundred seventy".