138851735 has 12 divisors (see below), whose sum is σ = 183147384. Its totient is φ = 100982640.

The previous prime is 138851731. The next prime is 138851737. The reversal of 138851735 is 537158831.

138851735 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 138851735 - 2² = 138851731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138851692 and 138851701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138851731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114149 + ... + 115358.

It is an arithmetic number, because the mean of its divisors is an integer number (15262282).

Almost surely, 2^138851735 is an apocalyptic number.

138851735 is a deficient number, since it is larger than the sum of its proper divisors (44295649).

138851735 is a wasteful number, since it uses less digits than its factorization.

138851735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229534 (or 229523 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 138851735 is about 11783.5366083362. The cubic root of 138851735 is about 517.8259018988.

The spelling of 138851735 in words is "one hundred thirty-eight million, eight hundred fifty-one thousand, seven hundred thirty-five".