1406543 has 2 divisors, whose sum is σ = 1406544. Its totient is φ = 1406542.

The previous prime is 1406539. The next prime is 1406549. The reversal of 1406543 is 3456041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1406543 - 2² = 1406539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703271 + 703272.

It is an arithmetic number, because the mean of its divisors is an integer number (703272).

2^1406543 is an apocalyptic number.

1406543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406543 is an equidigital number, since it uses as much as digits as its factorization.

1406543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1406543 is about 1185.9776557760. The cubic root of 1406543 is about 112.0428991700.

The spelling of 1406543 in words is "one million, four hundred six thousand, five hundred forty-three".