138251135 has 8 divisors (see below), whose sum is σ = 180983376. Its totient is φ = 100546240.

The previous prime is 138251119. The next prime is 138251143. The reversal of 138251135 is 531152831.

It is a happy number.

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

It is not a de Polignac number, because 138251135 - 2⁴ = 138251119 is a prime.

It is a super-2 number, since 2×138251135² = 38226752657576450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138251098 and 138251107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256774 + ... + 1256883.

It is an arithmetic number, because the mean of its divisors is an integer number (22622922).

Almost surely, 2^138251135 is an apocalyptic number.

138251135 is a deficient number, since it is larger than the sum of its proper divisors (42732241).

138251135 is a wasteful number, since it uses less digits than its factorization.

138251135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513673.

The product of its digits is 3600, while the sum is 29.

The square root of 138251135 is about 11758.0242813153. The cubic root of 138251135 is about 517.0782081228.

The spelling of 138251135 in words is "one hundred thirty-eight million, two hundred fifty-one thousand, one hundred thirty-five".