12537529 has 2 divisors, whose sum is σ = 12537530. Its totient is φ = 12537528.

The previous prime is 12537523. The next prime is 12537533. The reversal of 12537529 is 92573521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 5929 = 3540^2 + 77^2 .

It is an emirp because it is prime and its reverse (92573521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12537529 - 2¹³ = 12529337 is a prime.

It is a pancake number, because a pancake can be divided into 12537529 parts by 5007 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 12537494 and 12537503.

It is not a weakly prime, because it can be changed into another prime (12537523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268764 + 6268765.

It is an arithmetic number, because the mean of its divisors is an integer number (6268765).

Almost surely, 2^12537529 is an apocalyptic number.

It is an amenable number.

12537529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537529 is an equidigital number, since it uses as much as digits as its factorization.

12537529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

The square root of 12537529 is about 3540.8373303500. The cubic root of 12537529 is about 232.3114685455.

The spelling of 12537529 in words is "twelve million, five hundred thirty-seven thousand, five hundred twenty-nine".