451113631 has 2 divisors, whose sum is σ = 451113632. Its totient is φ = 451113630.

The previous prime is 451113617. The next prime is 451113667. The reversal of 451113631 is 136311154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451113631 - 2¹⁷ = 450982559 is a prime.

It is a super-3 number, since 3×451113631³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 451113596 and 451113605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451113601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225556815 + 225556816.

It is an arithmetic number, because the mean of its divisors is an integer number (225556816).

Almost surely, 2^451113631 is an apocalyptic number.

451113631 is a deficient number, since it is larger than the sum of its proper divisors (1).

451113631 is an equidigital number, since it uses as much as digits as its factorization.

451113631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 451113631 is about 21239.4357505090. The cubic root of 451113631 is about 766.9410493844.

Adding to 451113631 its reverse (136311154), we get a palindrome (587424785).

The spelling of 451113631 in words is "four hundred fifty-one million, one hundred thirteen thousand, six hundred thirty-one".