38140123 has 4 divisors (see below), whose sum is σ = 43588720. Its totient is φ = 32691528.

The previous prime is 38140121. The next prime is 38140147. The reversal of 38140123 is 32104183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32104183 = 257 ⋅124919.

It is a cyclic number.

It is not a de Polignac number, because 38140123 - 2¹ = 38140121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38140094 and 38140103.

It is not an unprimeable number, because it can be changed into a prime (38140121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2724288 + ... + 2724301.

It is an arithmetic number, because the mean of its divisors is an integer number (10897180).

Almost surely, 2^38140123 is an apocalyptic number.

38140123 is a deficient number, since it is larger than the sum of its proper divisors (5448597).

38140123 is an equidigital number, since it uses as much as digits as its factorization.

38140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448596.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 38140123 is about 6175.7690209398. The cubic root of 38140123 is about 336.6102707003.

It can be divided in two parts, 381 and 40123, that added together give a palindrome (40504).

The spelling of 38140123 in words is "thirty-eight million, one hundred forty thousand, one hundred twenty-three".