4138912539 has 16 divisors (see below), whose sum is σ = 6132807840. Its totient is φ = 2758786560.

The previous prime is 4138912529. The next prime is 4138912541. The reversal of 4138912539 is 9352198314.

It is a happy number.

4138912539 is a `hidden beast` number, since 413 + 89 + 125 + 39 = 666.

It is not a de Polignac number, because 4138912539 - 2¹⁶ = 4138847003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4138912494 and 4138912503.

It is not an unprimeable number, because it can be changed into a prime (4138912529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206899 + ... + 226019.

It is an arithmetic number, because the mean of its divisors is an integer number (383300490).

Almost surely, 2^4138912539 is an apocalyptic number.

4138912539 is a deficient number, since it is larger than the sum of its proper divisors (1993895301).

4138912539 is a wasteful number, since it uses less digits than its factorization.

4138912539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27147 (or 27141 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 4138912539 is about 64334.3806918198. The cubic root of 4138912539 is about 1605.5681698809.

The spelling of 4138912539 in words is "four billion, one hundred thirty-eight million, nine hundred twelve thousand, five hundred thirty-nine".