1140222187 has 16 divisors (see below), whose sum is σ = 1251169920. Its totient is φ = 1032681600.

The previous prime is 1140222173. The next prime is 1140222199. The reversal of 1140222187 is 7812220411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140222187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140222107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364014 + ... + 367132.

It is an arithmetic number, because the mean of its divisors is an integer number (78198120).

Almost surely, 2^1140222187 is an apocalyptic number.

1140222187 is a deficient number, since it is larger than the sum of its proper divisors (110947733).

1140222187 is a wasteful number, since it uses less digits than its factorization.

1140222187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1140222187 is about 33767.1761774656. The cubic root of 1140222187 is about 1044.7117897529.

Adding to 1140222187 its reverse (7812220411), we get a palindrome (8952442598).

The spelling of 1140222187 in words is "one billion, one hundred forty million, two hundred twenty-two thousand, one hundred eighty-seven".