1218363 has 8 divisors (see below), whose sum is σ = 1640976. Its totient is φ = 804000.

The previous prime is 1218313. The next prime is 1218367. The reversal of 1218363 is 3638121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1218363 - 2¹⁷ = 1087291 is a prime.

It is an alternating number because its digits alternate between odd and even.

1218363 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218367) 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, 1708 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (205122).

2^1218363 is an apocalyptic number.

1218363 is a deficient number, since it is larger than the sum of its proper divisors (422613).

1218363 is a wasteful number, since it uses less digits than its factorization.

1218363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125.

The product of its digits is 864, while the sum is 24.

The square root of 1218363 is about 1103.7948178896. The cubic root of 1218363 is about 106.8051597333.

It can be divided in two parts, 12183 and 63, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 1218363 in words is "one million, two hundred eighteen thousand, three hundred sixty-three".