1298005 has 8 divisors (see below), whose sum is σ = 1625472. Its totient is φ = 993168.

The previous prime is 1297993. The next prime is 1298027. The reversal of 1298005 is 5008921.

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 1298005 - 2⁵ = 1297973 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, 5529 + ... + 5758.

It is an arithmetic number, because the mean of its divisors is an integer number (203184).

2^1298005 is an apocalyptic number.

It is an amenable number.

1298005 is a deficient number, since it is larger than the sum of its proper divisors (327467).

1298005 is a wasteful number, since it uses less digits than its factorization.

1298005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11315.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1298005 is about 1139.3002238216. The cubic root of 1298005 is about 109.0834307795.

The spelling of 1298005 in words is "one million, two hundred ninety-eight thousand, five".