12730534 has 16 divisors (see below), whose sum is σ = 19483200. Its totient is φ = 6237504.

The previous prime is 12730519. The next prime is 12730567. The reversal of 12730534 is 43503721.

It is a junction number, because it is equal to n+sod(n) for n = 12730499 and 12730508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30922 + ... + 31330.

It is an arithmetic number, because the mean of its divisors is an integer number (1217700).

Almost surely, 2^12730534 is an apocalyptic number.

12730534 is a deficient number, since it is larger than the sum of its proper divisors (6752666).

12730534 is a wasteful number, since it uses less digits than its factorization.

12730534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 12730534 is about 3567.9873878701. The cubic root of 12730534 is about 233.4974849446.

The spelling of 12730534 in words is "twelve million, seven hundred thirty thousand, five hundred thirty-four".