1140217 has 8 divisors (see below), whose sum is σ = 1238720. Its totient is φ = 1043280.

The previous prime is 1140203. The next prime is 1140233. The reversal of 1140217 is 7120411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140217.

It is not an unprimeable number, because it can be changed into a prime (1140257) 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, 1492 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (154840).

2^1140217 is an apocalyptic number.

1140217 is the 617-th hex number.

It is an amenable number.

1140217 is a deficient number, since it is larger than the sum of its proper divisors (98503).

1140217 is a wasteful number, since it uses less digits than its factorization.

1140217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1140217 is about 1067.8094399283. The cubic root of 1140217 is about 104.4710205580.

Adding to 1140217 its reverse (7120411), we get a palindrome (8260628).

The spelling of 1140217 in words is "one million, one hundred forty thousand, two hundred seventeen".