1358123 has 4 divisors (see below), whose sum is σ = 1462608. Its totient is φ = 1253640.

The previous prime is 1358111. The next prime is 1358143. The reversal of 1358123 is 3218531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3218531 = 53 ⋅60727.

It is a cyclic number.

It is not a de Polignac number, because 1358123 - 2⁶ = 1358059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1358143) 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, 52223 + ... + 52248.

It is an arithmetic number, because the mean of its divisors is an integer number (365652).

2^1358123 is an apocalyptic number.

1358123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1358123 is a deficient number, since it is larger than the sum of its proper divisors (104485).

1358123 is a wasteful number, since it uses less digits than its factorization.

1358123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104484.

The product of its digits is 720, while the sum is 23.

The square root of 1358123 is about 1165.3853439957. The cubic root of 1358123 is about 110.7421713813.

The spelling of 1358123 in words is "one million, three hundred fifty-eight thousand, one hundred twenty-three".