1413636445 has 16 divisors (see below), whose sum is σ = 1934316720. Its totient is φ = 982508544.

The previous prime is 1413636443. The next prime is 1413636449. The reversal of 1413636445 is 5446363141.

It can be written as a sum of positive squares in 8 ways, for example, as 73856836 + 1339779609 = 8594^2 + 36603^2 .

It is a cyclic number.

It is not a de Polignac number, because 1413636445 - 2¹ = 1413636443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1413636443) 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 15 ways as a sum of consecutive naturals, for example, 638550 + ... + 640759.

It is an arithmetic number, because the mean of its divisors is an integer number (120894795).

Almost surely, 2^1413636445 is an apocalyptic number.

It is an amenable number.

1413636445 is a deficient number, since it is larger than the sum of its proper divisors (520680275).

1413636445 is a wasteful number, since it uses less digits than its factorization.

1413636445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279344.

The product of its digits is 103680, while the sum is 37.

The square root of 1413636445 is about 37598.3569454837. The cubic root of 1413636445 is about 1122.3093414142.

Adding to 1413636445 its reverse (5446363141), we get a palindrome (6859999586).

The spelling of 1413636445 in words is "one billion, four hundred thirteen million, six hundred thirty-six thousand, four hundred forty-five".