138606741 has 48 divisors (see below), whose sum is σ = 257275200. Its totient is φ = 73102176.

The previous prime is 138606739. The next prime is 138606751. The reversal of 138606741 is 147606831.

138606741 is a `hidden beast` number, since 1 + 3 + 8 + 606 + 7 + 41 = 666.

It is not a de Polignac number, because 138606741 - 2¹ = 138606739 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 138606696 and 138606705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138606751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13170 + ... + 21228.

It is an arithmetic number, because the mean of its divisors is an integer number (5359900).

Almost surely, 2^138606741 is an apocalyptic number.

It is an amenable number.

138606741 is a deficient number, since it is larger than the sum of its proper divisors (118668459).

138606741 is a wasteful number, since it uses less digits than its factorization.

138606741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8095 (or 8082 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 138606741 is about 11773.1364130379. The cubic root of 138606741 is about 517.5211669561.

The spelling of 138606741 in words is "one hundred thirty-eight million, six hundred six thousand, seven hundred forty-one".