1365123 has 8 divisors (see below), whose sum is σ = 1835008. Its totient is φ = 902664.

The previous prime is 1365109. The next prime is 1365127. The reversal of 1365123 is 3215631.

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

It is not a de Polignac number, because 1365123 - 2⁴ = 1365107 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 1365123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365127) 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, 1411 + ... + 2172.

It is an arithmetic number, because the mean of its divisors is an integer number (229376).

2^1365123 is an apocalyptic number.

1365123 is a deficient number, since it is larger than the sum of its proper divisors (469885).

1365123 is a wasteful number, since it uses less digits than its factorization.

1365123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713.

The product of its digits is 540, while the sum is 21.

The square root of 1365123 is about 1168.3847825096. The cubic root of 1365123 is about 110.9321068462.

The spelling of 1365123 in words is "one million, three hundred sixty-five thousand, one hundred twenty-three".