138184210 has 16 divisors (see below), whose sum is σ = 251729856. Its totient is φ = 54607408.

The previous prime is 138184153. The next prime is 138184213. The reversal of 138184210 is 12481831.

It is not an unprimeable number, because it can be changed into a prime (138184213) 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, 82414 + ... + 84073.

It is an arithmetic number, because the mean of its divisors is an integer number (15733116).

Almost surely, 2^138184210 is an apocalyptic number.

138184210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138184210 is a deficient number, since it is larger than the sum of its proper divisors (113545646).

138184210 is a wasteful number, since it uses less digits than its factorization.

138184210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166577.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 138184210 is about 11755.1780080099. The cubic root of 138184210 is about 516.9947584293.

The spelling of 138184210 in words is "one hundred thirty-eight million, one hundred eighty-four thousand, two hundred ten".