1290899 has 8 divisors (see below), whose sum is σ = 1327872. Its totient is φ = 1254600.

The previous prime is 1290869. The next prime is 1290901. The reversal of 1290899 is 9980921.

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 1290899 - 2⁸ = 1290643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1290869) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8474 + ... + 8624.

It is an arithmetic number, because the mean of its divisors is an integer number (165984).

2^1290899 is an apocalyptic number.

1290899 is a deficient number, since it is larger than the sum of its proper divisors (36973).

1290899 is a wasteful number, since it uses less digits than its factorization.

1290899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1290899 is about 1136.1773629148. The cubic root of 1290899 is about 108.8840053265.

The spelling of 1290899 in words is "one million, two hundred ninety thousand, eight hundred ninety-nine".