12801445 has 8 divisors (see below), whose sum is σ = 15777144. Its totient is φ = 9964224.

The previous prime is 12801443. The next prime is 12801449. The reversal of 12801445 is 54410821.

12801445 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6155361 + 6646084 = 2481^2 + 2578^2 .

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 12801445 - 2¹ = 12801443 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 (12801443) 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, 34414 + ... + 34783.

It is an arithmetic number, because the mean of its divisors is an integer number (1972143).

Almost surely, 2^12801445 is an apocalyptic number.

It is an amenable number.

12801445 is a deficient number, since it is larger than the sum of its proper divisors (2975699).

12801445 is an equidigital number, since it uses as much as digits as its factorization.

12801445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69239.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 12801445 is about 3577.9107031898. The cubic root of 12801445 is about 233.9302212375.

It can be divided in two parts, 1280 and 1445, that multiplied together give a square (1849600 = 1360²).

The spelling of 12801445 in words is "twelve million, eight hundred one thousand, four hundred forty-five".