12073139 has 4 divisors (see below), whose sum is σ = 13001856. Its totient is φ = 11144424.

The previous prime is 12073121. The next prime is 12073157. The reversal of 12073139 is 93137021.

12073139 is digitally balanced in base 2 and base 3, because in such bases 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: 93137021 = 6637 ⋅14033.

It is an interprime number because it is at equal distance from previous prime (12073121) and next prime (12073157).

It is a cyclic number.

It is not a de Polignac number, because 12073139 - 2¹⁶ = 12007603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12073169) 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, 464339 + ... + 464364.

It is an arithmetic number, because the mean of its divisors is an integer number (3250464).

Almost surely, 2^12073139 is an apocalyptic number.

12073139 is a deficient number, since it is larger than the sum of its proper divisors (928717).

12073139 is an equidigital number, since it uses as much as digits as its factorization.

12073139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928716.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 12073139 is about 3474.6422837466. The cubic root of 12073139 is about 229.4070359173.

The spelling of 12073139 in words is "twelve million, seventy-three thousand, one hundred thirty-nine".