12741491 has 4 divisors (see below), whose sum is σ = 14561712. Its totient is φ = 10921272.

The previous prime is 12741481. The next prime is 12741503. The reversal of 12741491 is 19414721.

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

It is a cyclic number.

It is not a de Polignac number, because 12741491 - 2⁶ = 12741427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12741401) 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, 910100 + ... + 910113.

It is an arithmetic number, because the mean of its divisors is an integer number (3640428).

Almost surely, 2^12741491 is an apocalyptic number.

12741491 is a deficient number, since it is larger than the sum of its proper divisors (1820221).

12741491 is an equidigital number, since it uses as much as digits as its factorization.

12741491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820220.

The product of its digits is 2016, while the sum is 29.

The square root of 12741491 is about 3569.5225170882. The cubic root of 12741491 is about 233.5644551202.

The spelling of 12741491 in words is "twelve million, seven hundred forty-one thousand, four hundred ninety-one".