1172023 has 2 divisors, whose sum is σ = 1172024. Its totient is φ = 1172022.

The previous prime is 1172021. The next prime is 1172027. The reversal of 1172023 is 3202711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1172023 - 2¹ = 1172021 is a prime.

Together with 1172021, it forms a pair of twin primes.

1172023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1171988 and 1172006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586011 + 586012.

It is an arithmetic number, because the mean of its divisors is an integer number (586012).

2^1172023 is an apocalyptic number.

1172023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172023 is an equidigital number, since it uses as much as digits as its factorization.

1172023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1172023 is about 1082.6001108443. The cubic root of 1172023 is about 105.4335213060.

Adding to 1172023 its reverse (3202711), we get a palindrome (4374734).

The spelling of 1172023 in words is "one million, one hundred seventy-two thousand, twenty-three".