138814365 has 8 divisors (see below), whose sum is σ = 222103008. Its totient is φ = 74034320.

The previous prime is 138814339. The next prime is 138814369. The reversal of 138814365 is 563418831.

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

It is a de Polignac number, because none of the positive numbers 2^k-138814365 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138814369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4627131 + ... + 4627160.

It is an arithmetic number, because the mean of its divisors is an integer number (27762876).

Almost surely, 2^138814365 is an apocalyptic number.

138814365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138814365 is a deficient number, since it is larger than the sum of its proper divisors (83288643).

138814365 is an equidigital number, since it uses as much as digits as its factorization.

138814365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254299.

The product of its digits is 69120, while the sum is 39.

The square root of 138814365 is about 11781.9508146996. The cubic root of 138814365 is about 517.7794425340.

It can be divided in two parts, 1388 and 14365, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 138814365 in words is "one hundred thirty-eight million, eight hundred fourteen thousand, three hundred sixty-five".