1491159 has 8 divisors (see below), whose sum is σ = 2074752. Its totient is φ = 950840.

The previous prime is 1491157. The next prime is 1491179. The reversal of 1491159 is 9511941.

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 1491159 - 2¹ = 1491157 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491157) 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, 10737 + ... + 10874.

It is an arithmetic number, because the mean of its divisors is an integer number (259344).

2^1491159 is an apocalyptic number.

1491159 is a deficient number, since it is larger than the sum of its proper divisors (583593).

1491159 is a wasteful number, since it uses less digits than its factorization.

1491159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21637.

The product of its digits is 1620, while the sum is 30.

The square root of 1491159 is about 1221.1302141868. The cubic root of 1491159 is about 114.2460827613.

The spelling of 1491159 in words is "one million, four hundred ninety-one thousand, one hundred fifty-nine".