80149057 has 2 divisors, whose sum is σ = 80149058. Its totient is φ = 80149056.

The previous prime is 80149007. The next prime is 80149061. The reversal of 80149057 is 75094108.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51322896 + 28826161 = 7164^2 + 5369^2 .

It is a cyclic number.

It is not a de Polignac number, because 80149057 - 2²³ = 71760449 is a prime.

It is not a weakly prime, because it can be changed into another prime (80149007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40074528 + 40074529.

It is an arithmetic number, because the mean of its divisors is an integer number (40074529).

Almost surely, 2^80149057 is an apocalyptic number.

It is an amenable number.

80149057 is a deficient number, since it is larger than the sum of its proper divisors (1).

80149057 is an equidigital number, since it uses as much as digits as its factorization.

80149057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 80149057 is about 8952.6005719009. The cubic root of 80149057 is about 431.1543832823.

It can be divided in two parts, 8014 and 9057, that added together give a palindrome (17071).

The spelling of 80149057 in words is "eighty million, one hundred forty-nine thousand, fifty-seven".