1188023 has 4 divisors (see below), whose sum is σ = 1194840. Its totient is φ = 1181208.

The previous prime is 1188017. The next prime is 1188029. The reversal of 1188023 is 3208811.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1188017) and next prime (1188029).

It is a cyclic number.

It is not a de Polignac number, because 1188023 - 2⁴ = 1188007 is a prime.

It is a super-2 number, since 2×1188023² = 2822797297058, which contains 22 as substring.

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 1188023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140 + ... + 3497.

It is an arithmetic number, because the mean of its divisors is an integer number (298710).

2^1188023 is an apocalyptic number.

1188023 is a deficient number, since it is larger than the sum of its proper divisors (6817).

1188023 is an equidigital number, since it uses as much as digits as its factorization.

1188023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1188023 is about 1089.9646783268. The cubic root of 1188023 is about 105.9111335403.

The spelling of 1188023 in words is "one million, one hundred eighty-eight thousand, twenty-three".