1214855 has 4 divisors (see below), whose sum is σ = 1457832. Its totient is φ = 971880.

The previous prime is 1214849. The next prime is 1214867. The reversal of 1214855 is 5584121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5584121 = 113 ⋅49417.

It is a de Polignac number, because none of the positive numbers 2^k-1214855 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121481 + ... + 121490.

It is an arithmetic number, because the mean of its divisors is an integer number (364458).

2^1214855 is an apocalyptic number.

1214855 is a deficient number, since it is larger than the sum of its proper divisors (242977).

1214855 is an equidigital number, since it uses as much as digits as its factorization.

1214855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242976.

The product of its digits is 1600, while the sum is 26.

The square root of 1214855 is about 1102.2046089543. The cubic root of 1214855 is about 106.7025541137.

Adding to 1214855 its reverse (5584121), we get a palindrome (6798976).

The spelling of 1214855 in words is "one million, two hundred fourteen thousand, eight hundred fifty-five".