138127063 has 4 divisors (see below), whose sum is σ = 140733288. Its totient is φ = 135520840.

The previous prime is 138127061. The next prime is 138127069. The reversal of 138127063 is 360721831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138127063 - 2¹ = 138127061 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138127061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303033 + ... + 1303138.

It is an arithmetic number, because the mean of its divisors is an integer number (35183322).

Almost surely, 2^138127063 is an apocalyptic number.

138127063 is a deficient number, since it is larger than the sum of its proper divisors (2606225).

138127063 is an equidigital number, since it uses as much as digits as its factorization.

138127063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606224.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 138127063 is about 11752.7470405859. The cubic root of 138127063 is about 516.9234797277.

Adding to 138127063 its reverse (360721831), we get a palindrome (498848894).

The spelling of 138127063 in words is "one hundred thirty-eight million, one hundred twenty-seven thousand, sixty-three".