38425139 has 4 divisors (see below), whose sum is σ = 38493240. Its totient is φ = 38357040.

The previous prime is 38425133. The next prime is 38425183. The reversal of 38425139 is 93152483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93152483 = 911 ⋅102253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38425139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38425099 and 38425108.

It is not an unprimeable number, because it can be changed into a prime (38425133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33197 + ... + 34334.

It is an arithmetic number, because the mean of its divisors is an integer number (9623310).

Almost surely, 2^38425139 is an apocalyptic number.

38425139 is a deficient number, since it is larger than the sum of its proper divisors (68101).

38425139 is an equidigital number, since it uses as much as digits as its factorization.

38425139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68100.

The product of its digits is 25920, while the sum is 35.

The square root of 38425139 is about 6198.8014164030. The cubic root of 38425139 is about 337.4466717753.

The spelling of 38425139 in words is "thirty-eight million, four hundred twenty-five thousand, one hundred thirty-nine".