1406245 has 4 divisors (see below), whose sum is σ = 1687500. Its totient is φ = 1124992.

The previous prime is 1406231. The next prime is 1406267. The reversal of 1406245 is 5426041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 224676 + 1181569 = 474^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406245 - 2⁵ = 1406213 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 140620 + ... + 140629.

It is an arithmetic number, because the mean of its divisors is an integer number (421875).

2^1406245 is an apocalyptic number.

It is an amenable number.

1406245 is a deficient number, since it is larger than the sum of its proper divisors (281255).

1406245 is an equidigital number, since it uses as much as digits as its factorization.

1406245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281254.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1406245 is about 1185.8520143762. The cubic root of 1406245 is about 112.0349858814.

The spelling of 1406245 in words is "one million, four hundred six thousand, two hundred forty-five".