3072139 has 4 divisors (see below), whose sum is σ = 3511024. Its totient is φ = 2633256.

The previous prime is 3072137. The next prime is 3072161. The reversal of 3072139 is 9312703.

3072139 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: 9312703 = 223 ⋅41761.

It is a cyclic number.

It is not a de Polignac number, because 3072139 - 2¹ = 3072137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3072137) 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, 219432 + ... + 219445.

It is an arithmetic number, because the mean of its divisors is an integer number (877756).

Almost surely, 2^3072139 is an apocalyptic number.

3072139 is a deficient number, since it is larger than the sum of its proper divisors (438885).

3072139 is an equidigital number, since it uses as much as digits as its factorization.

3072139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438884.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3072139 is about 1752.7518363990. The cubic root of 3072139 is about 145.3718399262.

The spelling of 3072139 in words is "three million, seventy-two thousand, one hundred thirty-nine".