138145063 has 6 divisors (see below), whose sum is σ = 160699416. Its totient is φ = 118410012.

The previous prime is 138145027. The next prime is 138145069. The reversal of 138145063 is 360541831.

It is a de Polignac number, because none of the positive numbers 2^k-138145063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138145069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1409595 + ... + 1409692.

It is an arithmetic number, because the mean of its divisors is an integer number (26783236).

Almost surely, 2^138145063 is an apocalyptic number.

138145063 is a deficient number, since it is larger than the sum of its proper divisors (22554353).

138145063 is an equidigital number, since it uses as much as digits as its factorization.

138145063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819301 (or 2819294 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 138145063 is about 11753.5127940544. The cubic root of 138145063 is about 516.9459330116.

Adding to 138145063 its reverse (360541831), we get a palindrome (498686894).

The spelling of 138145063 in words is "one hundred thirty-eight million, one hundred forty-five thousand, sixty-three".