1531254465427 has 2 divisors, whose sum is σ = 1531254465428. Its totient is φ = 1531254465426.

The previous prime is 1531254465397. The next prime is 1531254465439. The reversal of 1531254465427 is 7245644521351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1531254465427 - 2³⁵ = 1496894727059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1531054465427) 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, 765627232713 + 765627232714.

It is an arithmetic number, because the mean of its divisors is an integer number (765627232714).

Almost surely, 2^{1531254465427} is an apocalyptic number.

1531254465427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1531254465427 is an equidigital number, since it uses as much as digits as its factorization.

1531254465427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032000, while the sum is 49.

Adding to 1531254465427 its reverse (7245644521351), we get a palindrome (8776898986778).

The spelling of 1531254465427 in words is "one trillion, five hundred thirty-one billion, two hundred fifty-four million, four hundred sixty-five thousand, four hundred twenty-seven".