1300891 has 8 divisors (see below), whose sum is σ = 1401840. Its totient is φ = 1202688.

The previous prime is 1300843. The next prime is 1300907. The reversal of 1300891 is 1980031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1300841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (175230).

2^1300891 is an apocalyptic number.

1300891 is a deficient number, since it is larger than the sum of its proper divisors (100949).

1300891 is a wasteful number, since it uses less digits than its factorization.

1300891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1300891 is about 1140.5660875197. The cubic root of 1300891 is about 109.1642167415.

The spelling of 1300891 in words is "one million, three hundred thousand, eight hundred ninety-one".