138470154 has 8 divisors (see below), whose sum is σ = 276940320. Its totient is φ = 46156716.

The previous prime is 138470153. The next prime is 138470177. The reversal of 138470154 is 451074831.

It is a sphenic number, since it is the product of 3 distinct primes.

138470154 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (138470153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11539174 + ... + 11539185.

It is an arithmetic number, because the mean of its divisors is an integer number (34617540).

Almost surely, 2^138470154 is an apocalyptic number.

138470154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138470154 is a wasteful number, since it uses less digits than its factorization.

138470154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23078364.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 138470154 is about 11767.3341925858. The cubic root of 138470154 is about 517.3511177586.

The spelling of 138470154 in words is "one hundred thirty-eight million, four hundred seventy thousand, one hundred fifty-four".