1243023 has 8 divisors (see below), whose sum is σ = 1754928. Its totient is φ = 779904.

The previous prime is 1243013. The next prime is 1243093. The reversal of 1243023 is 3203421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1243023 - 2⁵ = 1242991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242993 and 1243011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12136 + ... + 12237.

It is an arithmetic number, because the mean of its divisors is an integer number (219366).

2^1243023 is an apocalyptic number.

1243023 is a deficient number, since it is larger than the sum of its proper divisors (511905).

1243023 is a wasteful number, since it uses less digits than its factorization.

1243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24393.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1243023 is about 1114.9094133606. The cubic root of 1243023 is about 107.5209405754.

Adding to 1243023 its reverse (3203421), we get a palindrome (4446444).

The spelling of 1243023 in words is "one million, two hundred forty-three thousand, twenty-three".