1154023 has 4 divisors (see below), whose sum is σ = 1242808. Its totient is φ = 1065240.

The previous prime is 1154017. The next prime is 1154029. The reversal of 1154023 is 3204511.

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 (1154017) and next prime (1154029).

It is a cyclic number.

It is not a de Polignac number, because 1154023 - 2⁹ = 1153511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1153988 and 1154006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154029) 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, 44373 + ... + 44398.

It is an arithmetic number, because the mean of its divisors is an integer number (310702).

2^1154023 is an apocalyptic number.

1154023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1154023 is a deficient number, since it is larger than the sum of its proper divisors (88785).

1154023 is an equidigital number, since it uses as much as digits as its factorization.

1154023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88784.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1154023 is about 1074.2546253100. The cubic root of 1154023 is about 104.8909828451.

Adding to 1154023 its reverse (3204511), we get a palindrome (4358534).

The spelling of 1154023 in words is "one million, one hundred fifty-four thousand, twenty-three".