80120137 has 8 divisors (see below), whose sum is σ = 82222976. Its totient is φ = 78028272.

The previous prime is 80120129. The next prime is 80120143. The reversal of 80120137 is 73102108.

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

It is a cyclic number.

It is not a de Polignac number, because 80120137 - 2³ = 80120129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80120177) 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, 13243 + ... + 18319.

It is an arithmetic number, because the mean of its divisors is an integer number (10277872).

Almost surely, 2^80120137 is an apocalyptic number.

It is an amenable number.

80120137 is a deficient number, since it is larger than the sum of its proper divisors (2102839).

80120137 is a wasteful number, since it uses less digits than its factorization.

80120137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 80120137 is about 8950.9852530322. The cubic root of 80120137 is about 431.1025195622.

The spelling of 80120137 in words is "eighty million, one hundred twenty thousand, one hundred thirty-seven".