1298872 has 8 divisors (see below), whose sum is σ = 2435400. Its totient is φ = 649432.

The previous prime is 1298863. The next prime is 1298887. The reversal of 1298872 is 2788921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 81172 + ... + 81187.

It is an arithmetic number, because the mean of its divisors is an integer number (304425).

2^1298872 is an apocalyptic number.

It is an amenable number.

1298872 is a deficient number, since it is larger than the sum of its proper divisors (1136528).

1298872 is a wasteful number, since it uses less digits than its factorization.

1298872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162365 (or 162361 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1298872 is about 1139.6806570263. The cubic root of 1298872 is about 109.1077127314.

The spelling of 1298872 in words is "one million, two hundred ninety-eight thousand, eight hundred seventy-two".