138173610 has 16 divisors (see below), whose sum is σ = 331616736. Its totient is φ = 36846288.

The previous prime is 138173593. The next prime is 138173611. The reversal of 138173610 is 16371831.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4605787 = 138173610 / (1 + 3 + 8 + 1 + 7 + 3 + 6 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (138173611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302864 + ... + 2302923.

It is an arithmetic number, because the mean of its divisors is an integer number (20726046).

Almost surely, 2^138173610 is an apocalyptic number.

138173610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138173610 is an abundant number, since it is smaller than the sum of its proper divisors (193443126).

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

138173610 is a wasteful number, since it uses less digits than its factorization.

138173610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605797.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 138173610 is about 11754.7271342214. The cubic root of 138173610 is about 516.9815386734.

The spelling of 138173610 in words is "one hundred thirty-eight million, one hundred seventy-three thousand, six hundred ten".