14445455021 has 2 divisors, whose sum is σ = 14445455022. Its totient is φ = 14445455020.

The previous prime is 14445455009. The next prime is 14445455083. The reversal of 14445455021 is 12055454441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9783979396 + 4661475625 = 98914^2 + 68275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14445455021 is a prime.

It is a super-2 number, since 2×14445455021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14445455221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7222727510 + 7222727511.

It is an arithmetic number, because the mean of its divisors is an integer number (7222727511).

Almost surely, 2^14445455021 is an apocalyptic number.

It is an amenable number.

14445455021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14445455021 is an equidigital number, since it uses as much as digits as its factorization.

14445455021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 14445455021 in words is "fourteen billion, four hundred forty-five million, four hundred fifty-five thousand, twenty-one".