1218041 has 4 divisors (see below), whose sum is σ = 1328784. Its totient is φ = 1107300.

The previous prime is 1218017. The next prime is 1218043. The reversal of 1218041 is 1408121.

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 1218041 - 2⁶ = 1217977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1218043) 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, 55355 + ... + 55376.

It is an arithmetic number, because the mean of its divisors is an integer number (332196).

2^1218041 is an apocalyptic number.

1218041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1218041 is a deficient number, since it is larger than the sum of its proper divisors (110743).

1218041 is a wasteful number, since it uses less digits than its factorization.

1218041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110742.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1218041 is about 1103.6489478090. The cubic root of 1218041 is about 106.7957497596.

It can be divided in two parts, 12180 and 41, that added together give a palindrome (12221).

The spelling of 1218041 in words is "one million, two hundred eighteen thousand, forty-one".