1413322021 has 4 divisors (see below), whose sum is σ = 1413775692. Its totient is φ = 1412868352.

The previous prime is 1413321997. The next prime is 1413322033. The reversal of 1413322021 is 1202233141.

It is a happy number.

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 967521025 + 445800996 = 31105^2 + 21114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1413322021 - 2²⁵ = 1379767589 is a prime.

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 1413322021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1413322051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222130 + ... + 228403.

It is an arithmetic number, because the mean of its divisors is an integer number (353443923).

Almost surely, 2^1413322021 is an apocalyptic number.

It is an amenable number.

1413322021 is a deficient number, since it is larger than the sum of its proper divisors (453671).

1413322021 is an equidigital number, since it uses as much as digits as its factorization.

1413322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453670.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1413322021 is about 37594.1753600209. The cubic root of 1413322021 is about 1122.2261264406.

Adding to 1413322021 its reverse (1202233141), we get a palindrome (2615555162).

The spelling of 1413322021 in words is "one billion, four hundred thirteen million, three hundred twenty-two thousand, twenty-one".