138808614 has 32 divisors (see below), whose sum is σ = 318320640. Its totient is φ = 39529152.

The previous prime is 138808613. The next prime is 138808633. The reversal of 138808614 is 416808831.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138808613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7867 + ... + 18425.

It is an arithmetic number, because the mean of its divisors is an integer number (9947520).

Almost surely, 2^138808614 is an apocalyptic number.

138808614 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138808614 is an abundant number, since it is smaller than the sum of its proper divisors (179512026).

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

138808614 is a wasteful number, since it uses less digits than its factorization.

138808614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10884.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 138808614 is about 11781.7067524192. The cubic root of 138808614 is about 517.7722919995.

The spelling of 138808614 in words is "one hundred thirty-eight million, eight hundred eight thousand, six hundred fourteen".