1142216 has 16 divisors (see below), whose sum is σ = 2174640. Its totient is φ = 562320.

The previous prime is 1142201. The next prime is 1142233. The reversal of 1142216 is 6122411.

It is a junction number, because it is equal to n+sod(n) for n = 1142194 and 1142203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (135915).

2^1142216 is an apocalyptic number.

It is an amenable number.

1142216 is a deficient number, since it is larger than the sum of its proper divisors (1032424).

1142216 is a wasteful number, since it uses less digits than its factorization.

1142216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204 (or 2200 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 1142216 is about 1068.7450584681. The cubic root of 1142216 is about 104.5320369101.

Adding to 1142216 its reverse (6122411), we get a palindrome (7264627).

The spelling of 1142216 in words is "one million, one hundred forty-two thousand, two hundred sixteen".