138614336 has 42 divisors (see below), whose sum is σ = 319978278. Its totient is φ = 59404800.

The previous prime is 138614309. The next prime is 138614339. The reversal of 138614336 is 633416831.

It can be written as a sum of positive squares in only one way, i.e., 97140736 + 41473600 = 9856^2 + 6440^2 .

It is a junction number, because it is equal to n+sod(n) for n = 138614296 and 138614305.

It is not an unprimeable number, because it can be changed into a prime (138614339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18965 + ... + 25236.

Almost surely, 2^138614336 is an apocalyptic number.

138614336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138614336 is an abundant number, since it is smaller than the sum of its proper divisors (181363942).

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

138614336 is an equidigital number, since it uses as much as digits as its factorization.

138614336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44227 (or 44210 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 138614336 is about 11773.4589649771. The cubic root of 138614336 is about 517.5306193619.

The spelling of 138614336 in words is "one hundred thirty-eight million, six hundred fourteen thousand, three hundred thirty-six".