1298741 has 4 divisors (see below), whose sum is σ = 1355232. Its totient is φ = 1242252.

The previous prime is 1298723. The next prime is 1298747. The reversal of 1298741 is 1478921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1298741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1298698 and 1298707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28211 + ... + 28256.

It is an arithmetic number, because the mean of its divisors is an integer number (338808).

2^1298741 is an apocalyptic number.

It is an amenable number.

1298741 is a deficient number, since it is larger than the sum of its proper divisors (56491).

1298741 is an equidigital number, since it uses as much as digits as its factorization.

1298741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56490.

The product of its digits is 4032, while the sum is 32.

The square root of 1298741 is about 1139.6231833374. The cubic root of 1298741 is about 109.1040445252.

The spelling of 1298741 in words is "one million, two hundred ninety-eight thousand, seven hundred forty-one".