1358023 has 4 divisors (see below), whose sum is σ = 1378360. Its totient is φ = 1337688.

The previous prime is 1358009. The next prime is 1358029. The reversal of 1358023 is 3208531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1357985 and 1358003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1358029) 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 in 3 ways as a sum of consecutive naturals, for example, 10068 + ... + 10201.

It is an arithmetic number, because the mean of its divisors is an integer number (344590).

2^1358023 is an apocalyptic number.

1358023 is a deficient number, since it is larger than the sum of its proper divisors (20337).

1358023 is an equidigital number, since it uses as much as digits as its factorization.

1358023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20336.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1358023 is about 1165.3424389423. The cubic root of 1358023 is about 110.7394532944.

The spelling of 1358023 in words is "one million, three hundred fifty-eight thousand, twenty-three".