138354698 has 8 divisors (see below), whose sum is σ = 211447908. Its totient is φ = 67872064.

The previous prime is 138354661. The next prime is 138354703. The reversal of 138354698 is 896453831.

It can be written as a sum of positive squares in 2 ways, for example, as 137757169 + 597529 = 11737^2 + 773^2 .

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, 652511 + ... + 652722.

Almost surely, 2^138354698 is an apocalyptic number.

138354698 is a deficient number, since it is larger than the sum of its proper divisors (73093210).

138354698 is a wasteful number, since it uses less digits than its factorization.

138354698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305288.

The product of its digits is 622080, while the sum is 47.

The square root of 138354698 is about 11762.4273855357. The cubic root of 138354698 is about 517.2072891720.

The spelling of 138354698 in words is "one hundred thirty-eight million, three hundred fifty-four thousand, six hundred ninety-eight".