138110530 has 8 divisors (see below), whose sum is σ = 248598972. Its totient is φ = 55244208.

The previous prime is 138110513. The next prime is 138110551. The reversal of 138110530 is 35011831.

138110530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 126090441 + 12020089 = 11229^2 + 3467^2 .

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

It is a super-3 number, since 3×138110530³ (a number of 25 digits) contains 333 as substring.

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, 6905517 + ... + 6905536.

Almost surely, 2^138110530 is an apocalyptic number.

138110530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138110530 is a deficient number, since it is larger than the sum of its proper divisors (110488442).

138110530 is a wasteful number, since it uses less digits than its factorization.

138110530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13811060.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 138110530 is about 11752.0436520632. The cubic root of 138110530 is about 516.9028546677.

It can be divided in two parts, 1381 and 10530, that added together give a palindrome (11911).

The spelling of 138110530 in words is "one hundred thirty-eight million, one hundred ten thousand, five hundred thirty".