454440013 has 2 divisors, whose sum is σ = 454440014. Its totient is φ = 454440012.

The previous prime is 454440011. The next prime is 454440037. The reversal of 454440013 is 310044454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332624644 + 121815369 = 18238^2 + 11037^2 .

It is a cyclic number.

It is not a de Polignac number, because 454440013 - 2¹ = 454440011 is a prime.

Together with 454440011, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 454440013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454440011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227220006 + 227220007.

It is an arithmetic number, because the mean of its divisors is an integer number (227220007).

Almost surely, 2^454440013 is an apocalyptic number.

It is an amenable number.

454440013 is a deficient number, since it is larger than the sum of its proper divisors (1).

454440013 is an equidigital number, since it uses as much as digits as its factorization.

454440013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 454440013 is about 21317.5986687056. The cubic root of 454440013 is about 768.8215024334.

Adding to 454440013 its reverse (310044454), we get a palindrome (764484467).

The spelling of 454440013 in words is "four hundred fifty-four million, four hundred forty thousand, thirteen".