451254414221 has 16 divisors (see below), whose sum is σ = 487933353600. Its totient is φ = 414859693248.

The previous prime is 451254414209. The next prime is 451254414239. The reversal of 451254414221 is 122414452154.

It is a happy number.

It is not a de Polignac number, because 451254414221 - 2⁶ = 451254414157 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 (451254419221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3334760 + ... + 3467438.

It is an arithmetic number, because the mean of its divisors is an integer number (30495834600).

Almost surely, 2^451254414221 is an apocalyptic number.

It is an amenable number.

451254414221 is a deficient number, since it is larger than the sum of its proper divisors (36678939379).

451254414221 is a wasteful number, since it uses less digits than its factorization.

451254414221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133748.

The product of its digits is 51200, while the sum is 35.

Adding to 451254414221 its reverse (122414452154), we get a palindrome (573668866375).

The spelling of 451254414221 in words is "four hundred fifty-one billion, two hundred fifty-four million, four hundred fourteen thousand, two hundred twenty-one".