80129741 has 2 divisors, whose sum is σ = 80129742. Its totient is φ = 80129740.

The previous prime is 80129717. The next prime is 80129743. The reversal of 80129741 is 14792108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74321641 + 5808100 = 8621^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 80129741 - 2¹⁴ = 80113357 is a prime.

Together with 80129743, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80129698 and 80129707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80129743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40064870 + 40064871.

It is an arithmetic number, because the mean of its divisors is an integer number (40064871).

Almost surely, 2^80129741 is an apocalyptic number.

It is an amenable number.

80129741 is a deficient number, since it is larger than the sum of its proper divisors (1).

80129741 is an equidigital number, since it uses as much as digits as its factorization.

80129741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 80129741 is about 8951.5217142115. The cubic root of 80129741 is about 431.1197442921.

The spelling of 80129741 in words is "eighty million, one hundred twenty-nine thousand, seven hundred forty-one".