12537129 has 8 divisors (see below), whose sum is σ = 18235872. Its totient is φ = 7598240.

The previous prime is 12537121. The next prime is 12537149. The reversal of 12537129 is 92173521.

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 12537129 - 2³ = 12537121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12537096 and 12537105.

It is not an unprimeable number, because it can be changed into a prime (12537121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189924 + ... + 189989.

It is an arithmetic number, because the mean of its divisors is an integer number (2279484).

Almost surely, 2^12537129 is an apocalyptic number.

It is an amenable number.

12537129 is a deficient number, since it is larger than the sum of its proper divisors (5698743).

12537129 is a wasteful number, since it uses less digits than its factorization.

12537129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379927.

The product of its digits is 3780, while the sum is 30.

The square root of 12537129 is about 3540.7808460847. The cubic root of 12537129 is about 232.3089979477.

The spelling of 12537129 in words is "twelve million, five hundred thirty-seven thousand, one hundred twenty-nine".