12571131 has 8 divisors (see below), whose sum is σ = 16782160. Its totient is φ = 8370432.

The previous prime is 12571127. The next prime is 12571183. The reversal of 12571131 is 13117521.

It is a happy number.

12571131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12571131 - 2² = 12571127 is a prime.

It is a super-2 number, since 2×12571131² = 316066669238322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12571098 and 12571107.

It is not an unprimeable number, because it can be changed into a prime (12571121) 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, 951 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (2097770).

Almost surely, 2^12571131 is an apocalyptic number.

12571131 is a deficient number, since it is larger than the sum of its proper divisors (4211029).

12571131 is a wasteful number, since it uses less digits than its factorization.

12571131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165.

The product of its digits is 210, while the sum is 21.

The square root of 12571131 is about 3545.5790782325. The cubic root of 12571131 is about 232.5188237737.

Adding to 12571131 its reverse (13117521), we get a palindrome (25688652).

The spelling of 12571131 in words is "twelve million, five hundred seventy-one thousand, one hundred thirty-one".