1406545 has 12 divisors (see below), whose sum is σ = 1963764. Its totient is φ = 964320.

The previous prime is 1406543. The next prime is 1406549. The reversal of 1406545 is 5456041.

It can be written as a sum of positive squares in 2 ways, for example, as 603729 + 802816 = 777^2 + 896^2 .

It is not a de Polignac number, because 1406545 - 2¹ = 1406543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2626 + ... + 3115.

It is an arithmetic number, because the mean of its divisors is an integer number (163647).

2^1406545 is an apocalyptic number.

It is an amenable number.

1406545 is a deficient number, since it is larger than the sum of its proper divisors (557219).

1406545 is an equidigital number, since it uses as much as digits as its factorization.

1406545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5753 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1406545 is about 1185.9784989619. The cubic root of 1406545 is about 112.0429522756.

The spelling of 1406545 in words is "one million, four hundred six thousand, five hundred forty-five".