80157187 has 4 divisors (see below), whose sum is σ = 87444216. Its totient is φ = 72870160.

The previous prime is 80157179. The next prime is 80157191. The reversal of 80157187 is 78175108.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 80157187 - 2³ = 80157179 is a prime.

It is a super-3 number, since 3×80157187³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80157887) 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 3 ways as a sum of consecutive naturals, for example, 3643498 + ... + 3643519.

It is an arithmetic number, because the mean of its divisors is an integer number (21861054).

Almost surely, 2^80157187 is an apocalyptic number.

80157187 is a deficient number, since it is larger than the sum of its proper divisors (7287029).

80157187 is a wasteful number, since it uses less digits than its factorization.

80157187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7287028.

The product of its (nonzero) digits is 15680, while the sum is 37.

The square root of 80157187 is about 8953.0546183970. The cubic root of 80157187 is about 431.1689609819.

The spelling of 80157187 in words is "eighty million, one hundred fifty-seven thousand, one hundred eighty-seven".