1355123 has 8 divisors (see below), whose sum is σ = 1689600. Its totient is φ = 1055880.

The previous prime is 1355119. The next prime is 1355129. The reversal of 1355123 is 3215531.

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

It is not a de Polignac number, because 1355123 - 2² = 1355119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1355095 and 1355104.

It is not an unprimeable number, because it can be changed into a prime (1355129) 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, 8723 + ... + 8876.

It is an arithmetic number, because the mean of its divisors is an integer number (211200).

2^1355123 is an apocalyptic number.

1355123 is a deficient number, since it is larger than the sum of its proper divisors (334477).

1355123 is a wasteful number, since it uses less digits than its factorization.

1355123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17617.

The product of its digits is 450, while the sum is 20.

The square root of 1355123 is about 1164.0975045072. The cubic root of 1355123 is about 110.6605706631.

The spelling of 1355123 in words is "one million, three hundred fifty-five thousand, one hundred twenty-three".