3912144139 has 4 divisors (see below), whose sum is σ = 3915147856. Its totient is φ = 3909140424.

The previous prime is 3912144133. The next prime is 3912144163. The reversal of 3912144139 is 9314412193.

It is a happy number.

3912144139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9314412193 = 257 ⋅36242849.

It is a cyclic number.

It is not a de Polignac number, because 3912144139 - 2¹³ = 3912135947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3912144098 and 3912144107.

It is not an unprimeable number, because it can be changed into a prime (3912144133) 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, 1499904 + ... + 1502509.

It is an arithmetic number, because the mean of its divisors is an integer number (978786964).

Almost surely, 2^3912144139 is an apocalyptic number.

3912144139 is a deficient number, since it is larger than the sum of its proper divisors (3003717).

3912144139 is a wasteful number, since it uses less digits than its factorization.

3912144139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003716.

The product of its digits is 23328, while the sum is 37.

The square root of 3912144139 is about 62547.1353380792. The cubic root of 3912144139 is about 1575.6930369361.

The spelling of 3912144139 in words is "three billion, nine hundred twelve million, one hundred forty-four thousand, one hundred thirty-nine".