138129063 has 16 divisors (see below), whose sum is σ = 195250176. Its totient is φ = 86560640.

The previous prime is 138129049. The next prime is 138129139. The reversal of 138129063 is 360921831.

It is a cyclic number.

It is not a de Polignac number, because 138129063 - 2⁶ = 138128999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138129023) 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, 64378 + ... + 66488.

It is an arithmetic number, because the mean of its divisors is an integer number (12203136).

Almost surely, 2^138129063 is an apocalyptic number.

138129063 is a deficient number, since it is larger than the sum of its proper divisors (57121113).

138129063 is a wasteful number, since it uses less digits than its factorization.

138129063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 138129063 is about 11752.8321267684. The cubic root of 138129063 is about 516.9259746333.

The spelling of 138129063 in words is "one hundred thirty-eight million, one hundred twenty-nine thousand, sixty-three".