1368545 has 4 divisors (see below), whose sum is σ = 1642260.
Its totient is φ = 1094832.
The previous prime is 1368529. The next prime is 1368547. The reversal of 1368545 is 5458631.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1018081 + 350464 = 1009^2 + 592^2
It is a cyclic number.
It is not a de Polignac number, because 1368545 - 24 = 1368529 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1368547) 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, 136850 + ... + 136859.
It is an arithmetic number, because the mean of its divisors is an integer number (410565).
21368545 is an apocalyptic number.
It is an amenable number.
1368545 is a deficient number, since it is larger than the sum of its proper divisors (273715).
1368545 is an equidigital number, since it uses as much as digits as its factorization.
1368545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 273714.
The product of its digits is 14400, while the sum is 32.
The square root of 1368545 is about 1169.8482807612.
The cubic root of 1368545 is about 111.0247219237.
The spelling of 1368545 in words is "one million, three hundred sixty-eight thousand, five hundred forty-five".