451403121 has 64 divisors (see below), whose sum is σ = 722247680. Its totient is φ = 248209920.

The previous prime is 451403093. The next prime is 451403149. The reversal of 451403121 is 121304154.

It is an interprime number because it is at equal distance from previous prime (451403093) and next prime (451403149).

It is not a de Polignac number, because 451403121 - 2¹³ = 451394929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (451403921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 987525 + ... + 987981.

It is an arithmetic number, because the mean of its divisors is an integer number (11285120).

Almost surely, 2^451403121 is an apocalyptic number.

It is an amenable number.

451403121 is a deficient number, since it is larger than the sum of its proper divisors (270844559).

451403121 is a wasteful number, since it uses less digits than its factorization.

451403121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 451403121 is about 21246.2495749250. The cubic root of 451403121 is about 767.1050688789.

Adding to 451403121 its reverse (121304154), we get a palindrome (572707275).

The spelling of 451403121 in words is "four hundred fifty-one million, four hundred three thousand, one hundred twenty-one".