1218395 has 8 divisors (see below), whose sum is σ = 1484304. Its totient is φ = 959904.

The previous prime is 1218391. The next prime is 1218401. The reversal of 1218395 is 5938121.

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

It is a cyclic number.

It is not a de Polignac number, because 1218395 - 2² = 1218391 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1218391) 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, 1484 + ... + 2153.

It is an arithmetic number, because the mean of its divisors is an integer number (185538).

2^1218395 is an apocalyptic number.

1218395 is a deficient number, since it is larger than the sum of its proper divisors (265909).

1218395 is an equidigital number, since it uses as much as digits as its factorization.

1218395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709.

The product of its digits is 2160, while the sum is 29.

The square root of 1218395 is about 1103.8093132421. The cubic root of 1218395 is about 106.8060947954.

The spelling of 1218395 in words is "one million, two hundred eighteen thousand, three hundred ninety-five".