12942530 has 8 divisors (see below), whose sum is σ = 23296572. Its totient is φ = 5177008.

The previous prime is 12942521. The next prime is 12942539. The reversal of 12942530 is 3524921.

12942530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12942521) and next prime (12942539).

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 332929 = 3551^2 + 577^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12942530.

It is not an unprimeable number, because it can be changed into a prime (12942539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647117 + ... + 647136.

Almost surely, 2^12942530 is an apocalyptic number.

12942530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12942530 is a deficient number, since it is larger than the sum of its proper divisors (10354042).

12942530 is a wasteful number, since it uses less digits than its factorization.

12942530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294260.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 12942530 is about 3597.5727928702. The cubic root of 12942530 is about 234.7864666619.

The spelling of 12942530 in words is "twelve million, nine hundred forty-two thousand, five hundred thirty".