12537039 has 4 divisors (see below), whose sum is σ = 16716056. Its totient is φ = 8358024.

The previous prime is 12537023. The next prime is 12537079. The reversal of 12537039 is 93073521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12537039 - 2⁴ = 12537023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12536997 and 12537015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12537079) 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, 2089504 + ... + 2089509.

It is an arithmetic number, because the mean of its divisors is an integer number (4179014).

Almost surely, 2^12537039 is an apocalyptic number.

12537039 is a deficient number, since it is larger than the sum of its proper divisors (4179017).

12537039 is an equidigital number, since it uses as much as digits as its factorization.

12537039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179016.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 12537039 is about 3540.7681370008. The cubic root of 12537039 is about 232.3084420559.

The spelling of 12537039 in words is "twelve million, five hundred thirty-seven thousand, thirty-nine".