138155160 has 256 divisors, whose sum is σ = 497871360. Its totient is φ = 30228480.

The previous prime is 138155113. The next prime is 138155161. The reversal of 138155160 is 61551831.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138155161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1424232 + ... + 1424328.

It is an arithmetic number, because the mean of its divisors is an integer number (1944810).

Almost surely, 2^138155160 is an apocalyptic number.

138155160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138155160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248935680).

138155160 is an abundant number, since it is smaller than the sum of its proper divisors (359716200).

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

138155160 is a wasteful number, since it uses less digits than its factorization.

138155160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 138155160 is about 11753.9423173674. The cubic root of 138155160 is about 516.9585272026.

The spelling of 138155160 in words is "one hundred thirty-eight million, one hundred fifty-five thousand, one hundred sixty".