1705123 has 4 divisors (see below), whose sum is σ = 1948720. Its totient is φ = 1461528.

The previous prime is 1705111. The next prime is 1705127. The reversal of 1705123 is 3215071.

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 1705123 - 2⁹ = 1704611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1705123.

It is not an unprimeable number, because it can be changed into a prime (1705127) 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, 121788 + ... + 121801.

It is an arithmetic number, because the mean of its divisors is an integer number (487180).

2^1705123 is an apocalyptic number.

1705123 is a deficient number, since it is larger than the sum of its proper divisors (243597).

1705123 is an equidigital number, since it uses as much as digits as its factorization.

1705123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243596.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1705123 is about 1305.8035840049. The cubic root of 1705123 is about 119.4680855234.

The spelling of 1705123 in words is "one million, seven hundred five thousand, one hundred twenty-three".