80141779 has 2 divisors, whose sum is σ = 80141780. Its totient is φ = 80141778.

The previous prime is 80141773. The next prime is 80141863. The reversal of 80141779 is 97714108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80141779 - 2⁷ = 80141651 is a prime.

It is not a weakly prime, because it can be changed into another prime (80141773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40070889 + 40070890.

It is an arithmetic number, because the mean of its divisors is an integer number (40070890).

Almost surely, 2^80141779 is an apocalyptic number.

80141779 is a deficient number, since it is larger than the sum of its proper divisors (1).

80141779 is an equidigital number, since it uses as much as digits as its factorization.

80141779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 80141779 is about 8952.1940886020. The cubic root of 80141779 is about 431.1413324463.

The spelling of 80141779 in words is "eighty million, one hundred forty-one thousand, seven hundred seventy-nine".