12571434 has 12 divisors (see below), whose sum is σ = 27238146. Its totient is φ = 4190472.

The previous prime is 12571421. The next prime is 12571439. The reversal of 12571434 is 43417521.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 356409 = 3495^2 + 597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12571398 and 12571407.

It is not an unprimeable number, because it can be changed into a prime (12571439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349189 + ... + 349224.

Almost surely, 2^12571434 is an apocalyptic number.

12571434 is an abundant number, since it is smaller than the sum of its proper divisors (14666712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12571434 is a wasteful number, since it uses less digits than its factorization.

12571434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698421 (or 698418 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 12571434 is about 3545.6218072434. The cubic root of 12571434 is about 232.5206918802.

Adding to 12571434 its reverse (43417521), we get a palindrome (55988955).

The spelling of 12571434 in words is "twelve million, five hundred seventy-one thousand, four hundred thirty-four".