138124235 has 8 divisors (see below), whose sum is σ = 175499136. Its totient is φ = 103999360.

The previous prime is 138124229. The next prime is 138124241. The reversal of 138124235 is 532421831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (138124229) and next prime (138124241).

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

It is not a de Polignac number, because 138124235 - 2²⁴ = 121347019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138124198 and 138124207.

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, 812411 + ... + 812580.

It is an arithmetic number, because the mean of its divisors is an integer number (21937392).

Almost surely, 2^138124235 is an apocalyptic number.

138124235 is a deficient number, since it is larger than the sum of its proper divisors (37374901).

138124235 is a wasteful number, since it uses less digits than its factorization.

138124235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625013.

The product of its digits is 5760, while the sum is 29.

The square root of 138124235 is about 11752.6267276724. The cubic root of 138124235 is about 516.9199518900.

The spelling of 138124235 in words is "one hundred thirty-eight million, one hundred twenty-four thousand, two hundred thirty-five".