12402971 has 8 divisors (see below), whose sum is σ = 14476800. Its totient is φ = 10404648.

The previous prime is 12402961. The next prime is 12402977. The reversal of 12402971 is 17920421.

12402971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12402971 - 2¹⁴ = 12386587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12402971.

It is not an unprimeable number, because it can be changed into a prime (12402977) 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, 18521 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (1809600).

Almost surely, 2^12402971 is an apocalyptic number.

12402971 is a deficient number, since it is larger than the sum of its proper divisors (2073829).

12402971 is an equidigital number, since it uses as much as digits as its factorization.

12402971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37753.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12402971 is about 3521.7852007185. The cubic root of 12402971 is about 231.4773895788.

The spelling of 12402971 in words is "twelve million, four hundred two thousand, nine hundred seventy-one".