1518241 has 4 divisors (see below), whose sum is σ = 1550592. Its totient is φ = 1485892.

The previous prime is 1518239. The next prime is 1518263. The reversal of 1518241 is 1428151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1518241 - 2¹ = 1518239 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

1518241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1518281) 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, 16105 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (387648).

2^1518241 is an apocalyptic number.

It is an amenable number.

1518241 is a deficient number, since it is larger than the sum of its proper divisors (32351).

1518241 is an equidigital number, since it uses as much as digits as its factorization.

1518241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32350.

The product of its digits is 320, while the sum is 22.

The square root of 1518241 is about 1232.1692253907. The cubic root of 1518241 is about 114.9335722225.

The spelling of 1518241 in words is "one million, five hundred eighteen thousand, two hundred forty-one".