138814562 has 8 divisors (see below), whose sum is σ = 208963692. Its totient is φ = 69160000.

The previous prime is 138814531. The next prime is 138814573. The reversal of 138814562 is 265418831.

It can be written as a sum of positive squares in 2 ways, for example, as 131583841 + 7230721 = 11471^2 + 2689^2 .

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, 122939 + ... + 124062.

Almost surely, 2^138814562 is an apocalyptic number.

138814562 is a deficient number, since it is larger than the sum of its proper divisors (70149130).

138814562 is a wasteful number, since it uses less digits than its factorization.

138814562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247284.

The product of its digits is 46080, while the sum is 38.

The square root of 138814562 is about 11781.9591749420. The cubic root of 138814562 is about 517.7796874714.

The spelling of 138814562 in words is "one hundred thirty-eight million, eight hundred fourteen thousand, five hundred sixty-two".