1163023 has 4 divisors (see below), whose sum is σ = 1166560. Its totient is φ = 1159488.

The previous prime is 1163017. The next prime is 1163033. The reversal of 1163023 is 3203611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3203611 = 311 ⋅10301.

It is a cyclic number.

It is not a de Polignac number, because 1163023 - 2⁵ = 1162991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1162988 and 1163006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163003) 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 3 ways as a sum of consecutive naturals, for example, 1218 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (291640).

2^1163023 is an apocalyptic number.

1163023 is a deficient number, since it is larger than the sum of its proper divisors (3537).

1163023 is an equidigital number, since it uses as much as digits as its factorization.

1163023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1163023 is about 1078.4354408123. The cubic root of 1163023 is about 105.1629518181.

Adding to 1163023 its reverse (3203611), we get a palindrome (4366634).

It can be divided in two parts, 11 and 63023, that multiplied together give a triangular number (693253 = T₁₁₇₇).

The spelling of 1163023 in words is "one million, one hundred sixty-three thousand, twenty-three".