1298245 has 8 divisors (see below), whose sum is σ = 1677816. Its totient is φ = 958656.

The previous prime is 1298221. The next prime is 1298261. The reversal of 1298245 is 5428921.

It can be written as a sum of positive squares in 4 ways, for example, as 5476 + 1292769 = 74^2 + 1137^2 .

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 1298245 - 2⁷ = 1298117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9922 + ... + 10051.

It is an arithmetic number, because the mean of its divisors is an integer number (209727).

2^1298245 is an apocalyptic number.

It is an amenable number.

1298245 is a deficient number, since it is larger than the sum of its proper divisors (379571).

1298245 is a wasteful number, since it uses less digits than its factorization.

1298245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19991.

The product of its digits is 5760, while the sum is 31.

The square root of 1298245 is about 1139.4055467655. The cubic root of 1298245 is about 109.0901535091.

The spelling of 1298245 in words is "one million, two hundred ninety-eight thousand, two hundred forty-five".