1140667 has 8 divisors (see below), whose sum is σ = 1256112. Its totient is φ = 1035760.

The previous prime is 1140637. The next prime is 1140677. The reversal of 1140667 is 7660411.

It is a happy number.

It is not a de Polignac number, because 1140667 - 2⁷ = 1140539 is a prime.

It is a super-2 number, since 2×1140667² = 2602242409778, which contains 22 as substring.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1140637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903 + ... + 1759.

It is an arithmetic number, because the mean of its divisors is an integer number (157014).

2^1140667 is an apocalyptic number.

1140667 is a deficient number, since it is larger than the sum of its proper divisors (115445).

1140667 is an frugal number, since it uses more digits than its factorization.

1140667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1140667 is about 1068.0201308964. The cubic root of 1140667 is about 104.4847623212.

The spelling of 1140667 in words is "one million, one hundred forty thousand, six hundred sixty-seven".