1413664221 has 4 divisors (see below), whose sum is σ = 1884885632. Its totient is φ = 942442812.

The previous prime is 1413664211. The next prime is 1413664243. The reversal of 1413664221 is 1224663141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1413664221 - 2¹⁰ = 1413663197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1413664211) 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, 235610701 + ... + 235610706.

It is an arithmetic number, because the mean of its divisors is an integer number (471221408).

Almost surely, 2^1413664221 is an apocalyptic number.

It is an amenable number.

1413664221 is a deficient number, since it is larger than the sum of its proper divisors (471221411).

1413664221 is an equidigital number, since it uses as much as digits as its factorization.

1413664221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471221410.

The product of its digits is 6912, while the sum is 30.

The square root of 1413664221 is about 37598.7263215125. The cubic root of 1413664221 is about 1122.3166919746.

The spelling of 1413664221 in words is "one billion, four hundred thirteen million, six hundred sixty-four thousand, two hundred twenty-one".