138069498 has 32 divisors (see below), whose sum is σ = 317241216. Its totient is φ = 39241728.

The previous prime is 138069497. The next prime is 138069521. The reversal of 138069498 is 894960831.

138069498 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138069497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411 + ... + 16622.

It is an arithmetic number, because the mean of its divisors is an integer number (9913788).

Almost surely, 2^138069498 is an apocalyptic number.

138069498 is an abundant number, since it is smaller than the sum of its proper divisors (179171718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138069498 is a wasteful number, since it uses less digits than its factorization.

138069498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17238.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 138069498 is about 11750.2977834606. The cubic root of 138069498 is about 516.8516597812.

The spelling of 138069498 in words is "one hundred thirty-eight million, sixty-nine thousand, four hundred ninety-eight".