80142911 has 2 divisors, whose sum is σ = 80142912. Its totient is φ = 80142910.

The previous prime is 80142889. The next prime is 80142919. The reversal of 80142911 is 11924108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80142911 - 2⁶ = 80142847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80142919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40071455 + 40071456.

It is an arithmetic number, because the mean of its divisors is an integer number (40071456).

Almost surely, 2^80142911 is an apocalyptic number.

80142911 is a deficient number, since it is larger than the sum of its proper divisors (1).

80142911 is an equidigital number, since it uses as much as digits as its factorization.

80142911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 80142911 is about 8952.2573131027. The cubic root of 80142911 is about 431.1433623892.

The spelling of 80142911 in words is "eighty million, one hundred forty-two thousand, nine hundred eleven".