1491046 has 8 divisors (see below), whose sum is σ = 2265120. Its totient is φ = 736008.

The previous prime is 1491041. The next prime is 1491079. The reversal of 1491046 is 6401941.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1491046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4561 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (283140).

2^1491046 is an apocalyptic number.

1491046 is a deficient number, since it is larger than the sum of its proper divisors (774074).

1491046 is an equidigital number, since it uses as much as digits as its factorization.

1491046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1491046 is about 1221.0839446983. The cubic root of 1491046 is about 114.2431968331.

Adding to 1491046 its reverse (6401941), we get a palindrome (7892987).

The spelling of 1491046 in words is "one million, four hundred ninety-one thousand, forty-six".