12730 has 16 divisors (see below), whose sum is σ = 24480. Its totient is φ = 4752.

The previous prime is 12721. The next prime is 12739. The reversal of 12730 is 3721.

It is an interprime number because it is at equal distance from previous prime (12721) and next prime (12739).

It is a self number, because there is not a number n which added to its sum of digits gives 12730.

It is not an unprimeable number, because it can be changed into a prime (12739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157 + ... + 223.

It is an arithmetic number, because the mean of its divisors is an integer number (1530).

2¹²⁷³⁰ is an apocalyptic number.

12730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12730 is a deficient number, since it is larger than the sum of its proper divisors (11750).

12730 is a wasteful number, since it uses less digits than its factorization.

12730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 12730 is about 112.8273016605. The cubic root of 12730 is about 23.3494220106.

Subtracting from 12730 its reverse (3721), we obtain a palindrome (9009).

The spelling of 12730 in words is "twelve thousand, seven hundred thirty".