1406006543 has 8 divisors (see below), whose sum is σ = 1414446096. Its totient is φ = 1397592000.

The previous prime is 1406006489. The next prime is 1406006599. The reversal of 1406006543 is 3456006041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1406006543 - 2³⁰ = 332264719 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 (1406006143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113243 + ... + 125043.

It is an arithmetic number, because the mean of its divisors is an integer number (176805762).

Almost surely, 2^1406006543 is an apocalyptic number.

1406006543 is a deficient number, since it is larger than the sum of its proper divisors (8439553).

1406006543 is a wasteful number, since it uses less digits than its factorization.

1406006543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12505.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1406006543 is about 37496.7537661595. The cubic root of 1406006543 is about 1120.2865293165.

The spelling of 1406006543 in words is "one billion, four hundred six million, six thousand, five hundred forty-three".