138070635 has 16 divisors (see below), whose sum is σ = 226051584. Its totient is φ = 71924832.

The previous prime is 138070619. The next prime is 138070637. The reversal of 138070635 is 536070831.

It is a happy number.

138070635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138070635 - 2⁴ = 138070619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138070596 and 138070605.

It is not an unprimeable number, because it can be changed into a prime (138070637) 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, 106387 + ... + 107676.

It is an arithmetic number, because the mean of its divisors is an integer number (14128224).

Almost surely, 2^138070635 is an apocalyptic number.

138070635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138070635 is a deficient number, since it is larger than the sum of its proper divisors (87980949).

138070635 is a wasteful number, since it uses less digits than its factorization.

138070635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214114.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 138070635 is about 11750.3461651136. The cubic root of 138070635 is about 516.8530785322.

The spelling of 138070635 in words is "one hundred thirty-eight million, seventy thousand, six hundred thirty-five".