138600154 has 16 divisors (see below), whose sum is σ = 259200576. Its totient is φ = 54000000.

The previous prime is 138600107. The next prime is 138600173. The reversal of 138600154 is 451006831.

138600154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449847 + ... + 450154.

It is an arithmetic number, because the mean of its divisors is an integer number (16200036).

Almost surely, 2^138600154 is an apocalyptic number.

138600154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138600154 is a deficient number, since it is larger than the sum of its proper divisors (120600422).

138600154 is a wasteful number, since it uses less digits than its factorization.

138600154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900021.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 138600154 is about 11772.8566626796. The cubic root of 138600154 is about 517.5129687836.

Adding to 138600154 its reverse (451006831), we get a palindrome (589606985).

It can be divided in two parts, 138600 and 154, that multiplied together give a square (21344400 = 4620²).

The spelling of 138600154 in words is "one hundred thirty-eight million, six hundred thousand, one hundred fifty-four".