1061256043 has 2 divisors, whose sum is σ = 1061256044. Its totient is φ = 1061256042.

The previous prime is 1061256019. The next prime is 1061256061. The reversal of 1061256043 is 3406521601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1061256043 - 2²⁵ = 1027701611 is a prime.

It is a super-3 number, since 3×1061256043³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1061256083) 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, 530628021 + 530628022.

It is an arithmetic number, because the mean of its divisors is an integer number (530628022).

Almost surely, 2^1061256043 is an apocalyptic number.

1061256043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061256043 is an equidigital number, since it uses as much as digits as its factorization.

1061256043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1061256043 is about 32576.9250083552. The cubic root of 1061256043 is about 1020.0153922450.

Adding to 1061256043 its reverse (3406521601), we get a palindrome (4467777644).

It can be divided in two parts, 10612 and 56043, that multiplied together give a triangular number (594728316 = T₃₄₄₈₈).

The spelling of 1061256043 in words is "one billion, sixty-one million, two hundred fifty-six thousand, forty-three".