12145039 has 8 divisors (see below), whose sum is σ = 12470432. Its totient is φ = 11823840.

The previous prime is 12145033. The next prime is 12145043. The reversal of 12145039 is 93054121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12145039 - 2¹⁵ = 12112271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5317 + ... + 7249.

It is an arithmetic number, because the mean of its divisors is an integer number (1558804).

Almost surely, 2^12145039 is an apocalyptic number.

12145039 is a deficient number, since it is larger than the sum of its proper divisors (325393).

12145039 is a wasteful number, since it uses less digits than its factorization.

12145039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12145039 is about 3484.9733141016. The cubic root of 12145039 is about 229.8615360668.

The spelling of 12145039 in words is "twelve million, one hundred forty-five thousand, thirty-nine".