1051531543 has 2 divisors, whose sum is σ = 1051531544. Its totient is φ = 1051531542.

The previous prime is 1051531519. The next prime is 1051531577. The reversal of 1051531543 is 3451351501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051531543 - 2²⁹ = 514660631 is a prime.

It is a super-2 number, since 2×1051531543² = 2211437171847921698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051531343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525765771 + 525765772.

It is an arithmetic number, because the mean of its divisors is an integer number (525765772).

Almost surely, 2^1051531543 is an apocalyptic number.

1051531543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051531543 is an equidigital number, since it uses as much as digits as its factorization.

1051531543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1051531543 is about 32427.3271023068. The cubic root of 1051531543 is about 1016.8902928422.

The spelling of 1051531543 in words is "one billion, fifty-one million, five hundred thirty-one thousand, five hundred forty-three".