1543401230551 has 2 divisors, whose sum is σ = 1543401230552. Its totient is φ = 1543401230550.

The previous prime is 1543401230531. The next prime is 1543401230557. The reversal of 1543401230551 is 1550321043451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1543401230551 - 2²⁵ = 1543367676119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1543401230557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771700615275 + 771700615276.

It is an arithmetic number, because the mean of its divisors is an integer number (771700615276).

Almost surely, 2^{1543401230551} is an apocalyptic number.

1543401230551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1543401230551 is an equidigital number, since it uses as much as digits as its factorization.

1543401230551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1543401230551 in words is "one trillion, five hundred forty-three billion, four hundred one million, two hundred thirty thousand, five hundred fifty-one".