1366545 has 32 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 653312.

The previous prime is 1366543. The next prime is 1366549. The reversal of 1366545 is 5456631.

It is a cyclic number.

It is not a de Polignac number, because 1366545 - 2¹ = 1366543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1366543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5749 + ... + 5981.

It is an arithmetic number, because the mean of its divisors is an integer number (75816).

2^1366545 is an apocalyptic number.

1366545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1366545 is a deficient number, since it is larger than the sum of its proper divisors (1059567).

1366545 is a wasteful number, since it uses less digits than its factorization.

1366545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281.

The product of its digits is 10800, while the sum is 30.

The square root of 1366545 is about 1168.9931565240. The cubic root of 1366545 is about 110.9706114877.

The spelling of 1366545 in words is "one million, three hundred sixty-six thousand, five hundred forty-five".