12857502 has 48 divisors (see below), whose sum is σ = 30279312. Its totient is φ = 3628800.

The previous prime is 12857489. The next prime is 12857503. The reversal of 12857502 is 20575821.

It is a self number, because there is not a number n which added to its sum of digits gives 12857502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29478 + ... + 29910.

It is an arithmetic number, because the mean of its divisors is an integer number (630819).

Almost surely, 2^12857502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12857502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15139656).

12857502 is an abundant number, since it is smaller than the sum of its proper divisors (17421810).

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

12857502 is a wasteful number, since it uses less digits than its factorization.

12857502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 12857502 is about 3585.7359077322. The cubic root of 12857502 is about 234.2711809701.

It can be divided in two parts, 128 and 57502, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 12857502 in words is "twelve million, eight hundred fifty-seven thousand, five hundred two".