138701123 has 8 divisors (see below), whose sum is σ = 155400240. Its totient is φ = 122683680.

The previous prime is 138701119. The next prime is 138701177. The reversal of 138701123 is 321107831.

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

It is a cyclic number.

It is not a de Polignac number, because 138701123 - 2² = 138701119 is a prime.

It is a super-2 number, since 2×138701123² = 38476003042922258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138701092 and 138701101.

It is not an unprimeable number, because it can be changed into a prime (138701023) 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, 169988 + ... + 170801.

It is an arithmetic number, because the mean of its divisors is an integer number (19425030).

Almost surely, 2^138701123 is an apocalyptic number.

138701123 is a deficient number, since it is larger than the sum of its proper divisors (16699117).

138701123 is a wasteful number, since it uses less digits than its factorization.

138701123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340837.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 138701123 is about 11777.1440935398. The cubic root of 138701123 is about 517.6386061705.

Adding to 138701123 its reverse (321107831), we get a palindrome (459808954).

The spelling of 138701123 in words is "one hundred thirty-eight million, seven hundred one thousand, one hundred twenty-three".