138200136 has 32 divisors (see below), whose sum is σ = 351168000. Its totient is φ = 45311040.

The previous prime is 138200131. The next prime is 138200137. The reversal of 138200136 is 631002831.

138200136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (138200131) 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, 45736 + ... + 48663.

It is an arithmetic number, because the mean of its divisors is an integer number (10974000).

Almost surely, 2^138200136 is an apocalyptic number.

It is an amenable number.

138200136 is an abundant number, since it is smaller than the sum of its proper divisors (212967864).

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

138200136 is a wasteful number, since it uses less digits than its factorization.

138200136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94469 (or 94465 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 138200136 is about 11755.8553921014. The cubic root of 138200136 is about 517.0146192180.

Adding to 138200136 its reverse (631002831), we get a palindrome (769202967).

The spelling of 138200136 in words is "one hundred thirty-eight million, two hundred thousand, one hundred thirty-six".