451989113 has 2 divisors, whose sum is σ = 451989114. Its totient is φ = 451989112.

The previous prime is 451989089. The next prime is 451989143. The reversal of 451989113 is 311989154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282676969 + 169312144 = 16813^2 + 13012^2 .

It is a cyclic number.

It is not a de Polignac number, because 451989113 - 2⁶ = 451989049 is a prime.

It is a super-3 number, since 3×451989113³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (451989143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225994556 + 225994557.

It is an arithmetic number, because the mean of its divisors is an integer number (225994557).

Almost surely, 2^451989113 is an apocalyptic number.

It is an amenable number.

451989113 is a deficient number, since it is larger than the sum of its proper divisors (1).

451989113 is an equidigital number, since it uses as much as digits as its factorization.

451989113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 41.

The square root of 451989113 is about 21260.0355832252. The cubic root of 451989113 is about 767.4368662148.

Adding to 451989113 its sum of digits (41), we get a palindrome (451989154).

The spelling of 451989113 in words is "four hundred fifty-one million, nine hundred eighty-nine thousand, one hundred thirteen".