138015027 has 24 divisors (see below), whose sum is σ = 211526640. Its totient is φ = 86415360.

The previous prime is 138015011. The next prime is 138015047. The reversal of 138015027 is 720510831.

138015027 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 138015027 - 2⁴ = 138015011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138015047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141652 + ... + 142622.

It is an arithmetic number, because the mean of its divisors is an integer number (8813610).

Almost surely, 2^138015027 is an apocalyptic number.

138015027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

138015027 is a deficient number, since it is larger than the sum of its proper divisors (73511613).

138015027 is a wasteful number, since it uses less digits than its factorization.

138015027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 138015027 is about 11747.9796986546. The cubic root of 138015027 is about 516.7836816245.

Adding to 138015027 its reverse (720510831), we get a palindrome (858525858).

The spelling of 138015027 in words is "one hundred thirty-eight million, fifteen thousand, twenty-seven".