12870534 has 8 divisors (see below), whose sum is σ = 25741080. Its totient is φ = 4290176.

The previous prime is 12870521. The next prime is 12870541. The reversal of 12870534 is 43507821.

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

12870534 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072539 + ... + 1072550.

It is an arithmetic number, because the mean of its divisors is an integer number (3217635).

Almost surely, 2^12870534 is an apocalyptic number.

12870534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12870534 is a wasteful number, since it uses less digits than its factorization.

12870534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145094.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 12870534 is about 3587.5526476973. The cubic root of 12870534 is about 234.3503044558.

The spelling of 12870534 in words is "twelve million, eight hundred seventy thousand, five hundred thirty-four".