1441557 has 30 divisors (see below), whose sum is σ = 2383458. Its totient is φ = 863136.

The previous prime is 1441553. The next prime is 1441567. The reversal of 1441557 is 7551441.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 531441 + 910116 = 729^2 + 954^2 .

It is not a de Polignac number, because 1441557 - 2² = 1441553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 1441557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441553) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 38943 + ... + 38979.

2^1441557 is an apocalyptic number.

It is an amenable number.

1441557 is a deficient number, since it is larger than the sum of its proper divisors (941901).

1441557 is an equidigital number, since it uses as much as digits as its factorization.

1441557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 53 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 1441557 is about 1200.6485747295. The cubic root of 1441557 is about 112.9650086139.

Adding to 1441557 its reverse (7551441), we get a palindrome (8992998).

The spelling of 1441557 in words is "one million, four hundred forty-one thousand, five hundred fifty-seven".