80138930 has 8 divisors (see below), whose sum is σ = 144250092. Its totient is φ = 32055568.

The previous prime is 80138911. The next prime is 80138939. The reversal of 80138930 is 3983108.

It can be written as a sum of positive squares in 2 ways, for example, as 79192201 + 946729 = 8899^2 + 973^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80138939) 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 in 3 ways as a sum of consecutive naturals, for example, 4006937 + ... + 4006956.

Almost surely, 2^80138930 is an apocalyptic number.

80138930 is a deficient number, since it is larger than the sum of its proper divisors (64111162).

80138930 is a wasteful number, since it uses less digits than its factorization.

80138930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013900.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80138930 is about 8952.0349641855. The cubic root of 80138930 is about 431.1362234332.

The spelling of 80138930 in words is "eighty million, one hundred thirty-eight thousand, nine hundred thirty".