451121055 has 32 divisors (see below), whose sum is σ = 899900928. Its totient is φ = 187478400.

The previous prime is 451121039. The next prime is 451121059. The reversal of 451121055 is 550121154.

It is not a de Polignac number, because 451121055 - 2⁴ = 451121039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451121059) 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 31 ways as a sum of consecutive naturals, for example, 194136 + ... + 196445.

It is an arithmetic number, because the mean of its divisors is an integer number (28121904).

Almost surely, 2^451121055 is an apocalyptic number.

451121055 is a deficient number, since it is larger than the sum of its proper divisors (448779873).

451121055 is a wasteful number, since it uses less digits than its factorization.

451121055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390607.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 451121055 is about 21239.6105190279. The cubic root of 451121055 is about 766.9452565573.

Subtracting 451121055 from its reverse (550121154), we obtain a palindrome (99000099).

The spelling of 451121055 in words is "four hundred fifty-one million, one hundred twenty-one thousand, fifty-five".