80138194 has 8 divisors (see below), whose sum is σ = 124352460. Its totient is φ = 38687376.

The previous prime is 80138171. The next prime is 80138203. The reversal of 80138194 is 49183108.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79477225 + 660969 = 8915^2 + 813^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690789 + ... + 690904.

Almost surely, 2^80138194 is an apocalyptic number.

80138194 is a deficient number, since it is larger than the sum of its proper divisors (44214266).

80138194 is a wasteful number, since it uses less digits than its factorization.

80138194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381724.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 80138194 is about 8951.9938561194. The cubic root of 80138194 is about 431.1349035701.

The spelling of 80138194 in words is "eighty million, one hundred thirty-eight thousand, one hundred ninety-four".