81348482141 has 2 divisors, whose sum is σ = 81348482142. Its totient is φ = 81348482140.

The previous prime is 81348482101. The next prime is 81348482153. The reversal of 81348482141 is 14128484318.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41190326116 + 40158156025 = 202954^2 + 200395^2 .

It is a cyclic number.

It is not a de Polignac number, because 81348482141 - 2³⁴ = 64168612957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 81348482092 and 81348482101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81348482101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40674241070 + 40674241071.

It is an arithmetic number, because the mean of its divisors is an integer number (40674241071).

Almost surely, 2^81348482141 is an apocalyptic number.

It is an amenable number.

81348482141 is a deficient number, since it is larger than the sum of its proper divisors (1).

81348482141 is an equidigital number, since it uses as much as digits as its factorization.

81348482141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196608, while the sum is 44.

The spelling of 81348482141 in words is "eighty-one billion, three hundred forty-eight million, four hundred eighty-two thousand, one hundred forty-one".