451453121 has 12 divisors (see below), whose sum is σ = 543270420. Its totient is φ = 373615200.

The previous prime is 451453109. The next prime is 451453141. The reversal of 451453121 is 121354154.

It can be written as a sum of positive squares in 2 ways, for example, as 151782400 + 299670721 = 12320^2 + 17311^2 .

It is not a de Polignac number, because 451453121 - 2¹⁴ = 451436737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (451453141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157430 + ... + 160271.

It is an arithmetic number, because the mean of its divisors is an integer number (45272535).

Almost surely, 2^451453121 is an apocalyptic number.

It is an amenable number.

451453121 is a deficient number, since it is larger than the sum of its proper divisors (91817299).

451453121 is a wasteful number, since it uses less digits than its factorization.

451453121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317744 (or 317737 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 451453121 is about 21247.4262206038. The cubic root of 451453121 is about 767.1333908196.

The spelling of 451453121 in words is "four hundred fifty-one million, four hundred fifty-three thousand, one hundred twenty-one".