80759149 has 2 divisors, whose sum is σ = 80759150. Its totient is φ = 80759148.

The previous prime is 80759143. The next prime is 80759153. The reversal of 80759149 is 94195708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78676900 + 2082249 = 8870^2 + 1443^2 .

It is a cyclic number.

It is not a de Polignac number, because 80759149 - 2²¹ = 78661997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80759143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40379574 + 40379575.

It is an arithmetic number, because the mean of its divisors is an integer number (40379575).

Almost surely, 2^80759149 is an apocalyptic number.

It is an amenable number.

80759149 is a deficient number, since it is larger than the sum of its proper divisors (1).

80759149 is an equidigital number, since it uses as much as digits as its factorization.

80759149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 80759149 is about 8986.6094273647. The cubic root of 80759149 is about 432.2455968744.

It can be divided in two parts, 80759 and 149, that added together give a palindrome (80908).

The spelling of 80759149 in words is "eighty million, seven hundred fifty-nine thousand, one hundred forty-nine".