138827498 has 8 divisors (see below), whose sum is σ = 208337508. Its totient is φ = 69381664.

The previous prime is 138827489. The next prime is 138827503. The reversal of 138827498 is 894728831.

It can be written as a sum of positive squares in 2 ways, for example, as 131171209 + 7656289 = 11453^2 + 2767^2 .

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

It is an unprimeable number.

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, 10211 + ... + 19542.

Almost surely, 2^138827498 is an apocalyptic number.

138827498 is a deficient number, since it is larger than the sum of its proper divisors (69510010).

138827498 is a wasteful number, since it uses less digits than its factorization.

138827498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32088.

The product of its digits is 774144, while the sum is 50.

The square root of 138827498 is about 11782.5081370649. The cubic root of 138827498 is about 517.7957707744.

The spelling of 138827498 in words is "one hundred thirty-eight million, eight hundred twenty-seven thousand, four hundred ninety-eight".