451235451313 has 2 divisors, whose sum is σ = 451235451314. Its totient is φ = 451235451312.

The previous prime is 451235451257. The next prime is 451235451389. The reversal of 451235451313 is 313154532154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374974971904 + 76260479409 = 612352^2 + 276153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451235451313 is a prime.

It is a super-2 number, since 2×451235451313² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451235451013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225617725656 + 225617725657.

It is an arithmetic number, because the mean of its divisors is an integer number (225617725657).

Almost surely, 2^451235451313 is an apocalyptic number.

It is an amenable number.

451235451313 is a deficient number, since it is larger than the sum of its proper divisors (1).

451235451313 is an equidigital number, since it uses as much as digits as its factorization.

451235451313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 37.

Adding to 451235451313 its reverse (313154532154), we get a palindrome (764389983467).

The spelling of 451235451313 in words is "four hundred fifty-one billion, two hundred thirty-five million, four hundred fifty-one thousand, three hundred thirteen".