451126121 has 2 divisors, whose sum is σ = 451126122. Its totient is φ = 451126120.

The previous prime is 451126099. The next prime is 451126133. The reversal of 451126121 is 121621154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390457600 + 60668521 = 19760^2 + 7789^2 .

It is a cyclic number.

It is not a de Polignac number, because 451126121 - 2²² = 446931817 is a prime.

It is not a weakly prime, because it can be changed into another prime (451126021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225563060 + 225563061.

It is an arithmetic number, because the mean of its divisors is an integer number (225563061).

Almost surely, 2^451126121 is an apocalyptic number.

It is an amenable number.

451126121 is a deficient number, since it is larger than the sum of its proper divisors (1).

451126121 is an equidigital number, since it uses as much as digits as its factorization.

451126121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

The square root of 451126121 is about 21239.7297770005. The cubic root of 451126121 is about 766.9481274276.

Adding to 451126121 its reverse (121621154), we get a palindrome (572747275).

The spelling of 451126121 in words is "four hundred fifty-one million, one hundred twenty-six thousand, one hundred twenty-one".