138124365 has 8 divisors (see below), whose sum is σ = 220999008. Its totient is φ = 73666320.

The previous prime is 138124331. The next prime is 138124373. The reversal of 138124365 is 563421831.

138124365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 138124365 - 2¹⁰ = 138123341 is a prime.

It is a congruent number.

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, 4604131 + ... + 4604160.

It is an arithmetic number, because the mean of its divisors is an integer number (27624876).

Almost surely, 2^138124365 is an apocalyptic number.

138124365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138124365 is a deficient number, since it is larger than the sum of its proper divisors (82874643).

138124365 is an equidigital number, since it uses as much as digits as its factorization.

138124365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208299.

The product of its digits is 17280, while the sum is 33.

The square root of 138124365 is about 11752.6322583496. The cubic root of 138124365 is about 516.9201140618.

The spelling of 138124365 in words is "one hundred thirty-eight million, one hundred twenty-four thousand, three hundred sixty-five".