454121111 has 2 divisors, whose sum is σ = 454121112. Its totient is φ = 454121110.

The previous prime is 454121089. The next prime is 454121189. The reversal of 454121111 is 111121454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454121111 - 2¹⁰ = 454120087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227060555 + 227060556.

It is an arithmetic number, because the mean of its divisors is an integer number (227060556).

Almost surely, 2^454121111 is an apocalyptic number.

454121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

454121111 is an equidigital number, since it uses as much as digits as its factorization.

454121111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 20.

The square root of 454121111 is about 21310.1175735846. The cubic root of 454121111 is about 768.6416209079.

Adding to 454121111 its reverse (111121454), we get a palindrome (565242565).

It can be divided in two parts, 4541 and 21111, that added together give a palindrome (25652).

The spelling of 454121111 in words is "four hundred fifty-four million, one hundred twenty-one thousand, one hundred eleven".