138427016 has 32 divisors (see below), whose sum is σ = 319448640. Its totient is φ = 54762048.

The previous prime is 138427013. The next prime is 138427021. The reversal of 138427016 is 610724831.

It is not an unprimeable number, because it can be changed into a prime (138427013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94346 + ... + 95801.

It is an arithmetic number, because the mean of its divisors is an integer number (9982770).

Almost surely, 2^138427016 is an apocalyptic number.

It is an amenable number.

138427016 is an abundant number, since it is smaller than the sum of its proper divisors (181021624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138427016 is a wasteful number, since it uses less digits than its factorization.

138427016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190173 (or 190169 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 138427016 is about 11765.5010943011. The cubic root of 138427016 is about 517.2973882248.

The spelling of 138427016 in words is "one hundred thirty-eight million, four hundred twenty-seven thousand, sixteen".