1406549 has 2 divisors, whose sum is σ = 1406550. Its totient is φ = 1406548.

The previous prime is 1406543. The next prime is 1406557. The reversal of 1406549 is 9456041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964324 + 442225 = 982^2 + 665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406549 - 2⁴ = 1406533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703274 + 703275.

It is an arithmetic number, because the mean of its divisors is an integer number (703275).

2^1406549 is an apocalyptic number.

It is an amenable number.

1406549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406549 is an equidigital number, since it uses as much as digits as its factorization.

1406549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1406549 is about 1185.9801853319. The cubic root of 1406549 is about 112.0430584865.

The spelling of 1406549 in words is "one million, four hundred six thousand, five hundred forty-nine".