12450071 has 4 divisors (see below), whose sum is σ = 12685032. Its totient is φ = 12215112.

The previous prime is 12450059. The next prime is 12450079. The reversal of 12450071 is 17005421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12450071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12450079) 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, 117401 + ... + 117506.

It is an arithmetic number, because the mean of its divisors is an integer number (3171258).

Almost surely, 2^12450071 is an apocalyptic number.

12450071 is a deficient number, since it is larger than the sum of its proper divisors (234961).

12450071 is an equidigital number, since it uses as much as digits as its factorization.

12450071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234960.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12450071 is about 3528.4658139197. The cubic root of 12450071 is about 231.7700294986.

Adding to 12450071 its reverse (17005421), we get a palindrome (29455492).

The spelling of 12450071 in words is "twelve million, four hundred fifty thousand, seventy-one".