1491053 has 8 divisors (see below), whose sum is σ = 1592640. Its totient is φ = 1391040.

The previous prime is 1491041. The next prime is 1491079. The reversal of 1491053 is 3501941.

It is a happy number.

1491053 is nontrivially palindromic in base 2.

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 1491053 - 2¹⁰ = 1490029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1491013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2048 + ... + 2678.

It is an arithmetic number, because the mean of its divisors is an integer number (199080).

2^1491053 is an apocalyptic number.

It is an amenable number.

1491053 is a deficient number, since it is larger than the sum of its proper divisors (101587).

1491053 is a wasteful number, since it uses less digits than its factorization.

1491053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1491053 is about 1221.0868110008. The cubic root of 1491053 is about 114.2433756117.

Adding to 1491053 its reverse (3501941), we get a palindrome (4992994).

The spelling of 1491053 in words is "one million, four hundred ninety-one thousand, fifty-three".