1326023 has 4 divisors (see below), whose sum is σ = 1335840. Its totient is φ = 1316208.

The previous prime is 1326001. The next prime is 1326037. The reversal of 1326023 is 3206231.

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

It is a cyclic number.

It is not a de Polignac number, because 1326023 - 2⁶ = 1325959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325992 and 1326010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326053) 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, 4703 + ... + 4976.

It is an arithmetic number, because the mean of its divisors is an integer number (333960).

2^1326023 is an apocalyptic number.

1326023 is a deficient number, since it is larger than the sum of its proper divisors (9817).

1326023 is an equidigital number, since it uses as much as digits as its factorization.

1326023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9816.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1326023 is about 1151.5307203892. The cubic root of 1326023 is about 109.8627213111.

Subtracting from 1326023 its sum of digits (17), we obtain a triangular number (1326006 = T₁₆₂₈).

The spelling of 1326023 in words is "one million, three hundred twenty-six thousand, twenty-three".