1298567 has 4 divisors (see below), whose sum is σ = 1302000. Its totient is φ = 1295136.

The previous prime is 1298551. The next prime is 1298573. The reversal of 1298567 is 7658921.

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 1298567 - 2⁴ = 1298551 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067 + ... + 1932.

It is an arithmetic number, because the mean of its divisors is an integer number (325500).

2^1298567 is an apocalyptic number.

1298567 is a deficient number, since it is larger than the sum of its proper divisors (3433).

1298567 is an equidigital number, since it uses as much as digits as its factorization.

1298567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432.

The product of its digits is 30240, while the sum is 38.

The square root of 1298567 is about 1139.5468397569. The cubic root of 1298567 is about 109.0991718699.

The spelling of 1298567 in words is "one million, two hundred ninety-eight thousand, five hundred sixty-seven".