138161424 has 40 divisors (see below), whose sum is σ = 360205120. Its totient is φ = 45629568.

The previous prime is 138161399. The next prime is 138161447. The reversal of 138161424 is 424161831.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 138161391 and 138161400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7972 + ... + 18435.

It is an arithmetic number, because the mean of its divisors is an integer number (9005128).

Almost surely, 2^138161424 is an apocalyptic number.

It is an amenable number.

138161424 is an abundant number, since it is smaller than the sum of its proper divisors (222043696).

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

138161424 is a wasteful number, since it uses less digits than its factorization.

138161424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26527 (or 26521 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 138161424 is about 11754.2087781356. The cubic root of 138161424 is about 516.9663401072.

The spelling of 138161424 in words is "one hundred thirty-eight million, one hundred sixty-one thousand, four hundred twenty-four".