1218012 has 12 divisors (see below), whose sum is σ = 2842056. Its totient is φ = 406000.

The previous prime is 1217989. The next prime is 1218017. The reversal of 1218012 is 2108121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1217982 and 1218000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50739 + ... + 50762.

It is an arithmetic number, because the mean of its divisors is an integer number (236838).

2^1218012 is an apocalyptic number.

1218012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1218012 is an abundant number, since it is smaller than the sum of its proper divisors (1624044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1218012 is a wasteful number, since it uses less digits than its factorization.

1218012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101508 (or 101506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1218012 is about 1103.6358094951. The cubic root of 1218012 is about 106.7949021960.

The spelling of 1218012 in words is "one million, two hundred eighteen thousand, twelve".