1115667 has 16 divisors (see below), whose sum is σ = 1889280. Its totient is φ = 637416.

The previous prime is 1115657. The next prime is 1115683. The reversal of 1115667 is 7665111.

It is not a de Polignac number, because 1115667 - 2⁷ = 1115539 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

1115667 is a lucky number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1115667.

It is not an unprimeable number, because it can be changed into a prime (1115627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2763 + ... + 3140.

It is an arithmetic number, because the mean of its divisors is an integer number (118080).

2^1115667 is an apocalyptic number.

1115667 is a deficient number, since it is larger than the sum of its proper divisors (773613).

1115667 is an equidigital number, since it uses as much as digits as its factorization.

1115667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919 (or 5913 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 1115667 is about 1056.2513905316. The cubic root of 1115667 is about 103.7157858829.

It can be divided in two parts, 111 and 5667, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 1115667 in words is "one million, one hundred fifteen thousand, six hundred sixty-seven".