841262129 has 2 divisors, whose sum is σ = 841262130. Its totient is φ = 841262128.

The previous prime is 841262113. The next prime is 841262171. The reversal of 841262129 is 921262148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 636199729 + 205062400 = 25223^2 + 14320^2 .

It is a cyclic number.

It is not a de Polignac number, because 841262129 - 2⁴ = 841262113 is a prime.

It is a super-2 number, since 2×841262129² = 1415443939379225282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (841262029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420631064 + 420631065.

It is an arithmetic number, because the mean of its divisors is an integer number (420631065).

Almost surely, 2^841262129 is an apocalyptic number.

It is an amenable number.

841262129 is a deficient number, since it is larger than the sum of its proper divisors (1).

841262129 is an equidigital number, since it uses as much as digits as its factorization.

841262129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 35.

The square root of 841262129 is about 29004.5191134071. The cubic root of 841262129 is about 944.0111261167.

The spelling of 841262129 in words is "eight hundred forty-one million, two hundred sixty-two thousand, one hundred twenty-nine".