1491039 has 12 divisors (see below), whose sum is σ = 2349672. Its totient is φ = 903600.

The previous prime is 1491031. The next prime is 1491041. The reversal of 1491039 is 9301941.

It is not a de Polignac number, because 1491039 - 2³ = 1491031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491031) 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 11 ways as a sum of consecutive naturals, for example, 7432 + ... + 7629.

It is an arithmetic number, because the mean of its divisors is an integer number (195806).

2^1491039 is an apocalyptic number.

1491039 is a deficient number, since it is larger than the sum of its proper divisors (858633).

1491039 is a wasteful number, since it uses less digits than its factorization.

1491039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15078 (or 15075 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1491039 is about 1221.0810783891. The cubic root of 1491039 is about 114.2430180540.

The spelling of 1491039 in words is "one million, four hundred ninety-one thousand, thirty-nine".