12529971 has 10 divisors (see below), whose sum is σ = 18717732. Its totient is φ = 8353260.

The previous prime is 12529961. The next prime is 12529981. The reversal of 12529971 is 17992521.

It is an interprime number because it is at equal distance from previous prime (12529961) and next prime (12529981).

It is not a de Polignac number, because 12529971 - 2¹⁹ = 12005683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12529961) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77265 + ... + 77426.

Almost surely, 2^12529971 is an apocalyptic number.

12529971 is a deficient number, since it is larger than the sum of its proper divisors (6187761).

12529971 is an equidigital number, since it uses as much as digits as its factorization.

12529971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154703 (or 154694 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 12529971 is about 3539.7699077765. The cubic root of 12529971 is about 232.2647777125.

The spelling of 12529971 in words is "twelve million, five hundred twenty-nine thousand, nine hundred seventy-one".