12571000 has 64 divisors (see below), whose sum is σ = 31711680. Its totient is φ = 4636800.

The previous prime is 12570997. The next prime is 12571003. The reversal of 12571000 is 17521.

It is an interprime number because it is at equal distance from previous prime (12570997) and next prime (12571003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12571003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12517 + ... + 13483.

It is an arithmetic number, because the mean of its divisors is an integer number (495495).

Almost surely, 2^12571000 is an apocalyptic number.

12571000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12571000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15855840).

12571000 is an abundant number, since it is smaller than the sum of its proper divisors (19140680).

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

12571000 is a wasteful number, since it uses less digits than its factorization.

12571000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 12571000 is about 3545.5606044743. The cubic root of 12571000 is about 232.5180161011.

Adding to 12571000 its reverse (17521), we get a palindrome (12588521).

The spelling of 12571000 in words is "twelve million, five hundred seventy-one thousand".