12801739 has 4 divisors (see below), whose sum is σ = 12809160. Its totient is φ = 12794320.

The previous prime is 12801703. The next prime is 12801751. The reversal of 12801739 is 93710821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12801739 - 2¹⁵ = 12768971 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 12801739.

It is not an unprimeable number, because it can be changed into a prime (12804739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (3202290).

Almost surely, 2^12801739 is an apocalyptic number.

12801739 is a deficient number, since it is larger than the sum of its proper divisors (7421).

12801739 is an equidigital number, since it uses as much as digits as its factorization.

12801739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 12801739 is about 3577.9517883840. The cubic root of 12801739 is about 233.9320120499.

The spelling of 12801739 in words is "twelve million, eight hundred one thousand, seven hundred thirty-nine".