1451455231 has 2 divisors, whose sum is σ = 1451455232. Its totient is φ = 1451455230.

The previous prime is 1451455217. The next prime is 1451455333. The reversal of 1451455231 is 1325541541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1451455231 - 2⁵ = 1451455199 is a prime.

It is a super-2 number, since 2×1451455231² = 4213444575194526722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1451455193 and 1451455202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1451453231) 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 as a sum of consecutive naturals, namely, 725727615 + 725727616.

It is an arithmetic number, because the mean of its divisors is an integer number (725727616).

Almost surely, 2^1451455231 is an apocalyptic number.

1451455231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451455231 is an equidigital number, since it uses as much as digits as its factorization.

1451455231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 31.

The square root of 1451455231 is about 38097.9688566202. The cubic root of 1451455231 is about 1132.2297141788.

Adding to 1451455231 its reverse (1325541541), we get a palindrome (2776996772).

The spelling of 1451455231 in words is "one billion, four hundred fifty-one million, four hundred fifty-five thousand, two hundred thirty-one".