80128137 has 8 divisors (see below), whose sum is σ = 107317504. Its totient is φ = 53178768.

The previous prime is 80128133. The next prime is 80128141. The reversal of 80128137 is 73182108.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80128133) and next prime (80128141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80128137 - 2² = 80128133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80128133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59218 + ... + 60555.

It is an arithmetic number, because the mean of its divisors is an integer number (13414688).

Almost surely, 2^80128137 is an apocalyptic number.

It is an amenable number.

80128137 is a deficient number, since it is larger than the sum of its proper divisors (27189367).

80128137 is a wasteful number, since it uses less digits than its factorization.

80128137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119999.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 80128137 is about 8951.4321200577. The cubic root of 80128137 is about 431.1168676212.

The spelling of 80128137 in words is "eighty million, one hundred twenty-eight thousand, one hundred thirty-seven".