1298541 has 4 divisors (see below), whose sum is σ = 1731392. Its totient is φ = 865692.

The previous prime is 1298537. The next prime is 1298551. The reversal of 1298541 is 1458921.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1458921 = 3 ⋅486307.

It is not a de Polignac number, because 1298541 - 2² = 1298537 is a prime.

It is a D-number.

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

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1298499 and 1298508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298551) 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, 216421 + ... + 216426.

It is an arithmetic number, because the mean of its divisors is an integer number (432848).

2^1298541 is an apocalyptic number.

It is an amenable number.

1298541 is a deficient number, since it is larger than the sum of its proper divisors (432851).

1298541 is an equidigital number, since it uses as much as digits as its factorization.

1298541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432850.

The product of its digits is 2880, while the sum is 30.

The square root of 1298541 is about 1139.5354316563. The cubic root of 1298541 is about 109.0984437346.

The spelling of 1298541 in words is "one million, two hundred ninety-eight thousand, five hundred forty-one".