1406523 has 4 divisors (see below), whose sum is σ = 1875368. Its totient is φ = 937680.

The previous prime is 1406521. The next prime is 1406533. The reversal of 1406523 is 3256041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1406523 - 2¹ = 1406521 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1406523.

It is not an unprimeable number, because it can be changed into a prime (1406521) 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 in 3 ways as a sum of consecutive naturals, for example, 234418 + ... + 234423.

It is an arithmetic number, because the mean of its divisors is an integer number (468842).

2^1406523 is an apocalyptic number.

1406523 is a deficient number, since it is larger than the sum of its proper divisors (468845).

1406523 is an equidigital number, since it uses as much as digits as its factorization.

1406523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468844.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1406523 is about 1185.9692238840. The cubic root of 1406523 is about 112.0423681118.

The spelling of 1406523 in words is "one million, four hundred six thousand, five hundred twenty-three".