1451441231 has 2 divisors, whose sum is σ = 1451441232. Its totient is φ = 1451441230.

The previous prime is 1451441209. The next prime is 1451441237. The reversal of 1451441231 is 1321441541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451441231 is a prime.

It is a super-2 number, since 2×1451441231² = 4213363294093590722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1451441231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1451441237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725720615 + 725720616.

It is an arithmetic number, because the mean of its divisors is an integer number (725720616).

Almost surely, 2^1451441231 is an apocalyptic number.

1451441231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451441231 is an equidigital number, since it uses as much as digits as its factorization.

1451441231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 1451441231 is about 38097.7851193478. The cubic root of 1451441231 is about 1132.2260738629.

Adding to 1451441231 its reverse (1321441541), we get a palindrome (2772882772).

The spelling of 1451441231 in words is "one billion, four hundred fifty-one million, four hundred forty-one thousand, two hundred thirty-one".