1226985 has 8 divisors (see below), whose sum is σ = 1963200. Its totient is φ = 654384.

The previous prime is 1226983. The next prime is 1226993. The reversal of 1226985 is 5896221.

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

It is not a de Polignac number, because 1226985 - 2¹ = 1226983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226983) 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 7 ways as a sum of consecutive naturals, for example, 40885 + ... + 40914.

It is an arithmetic number, because the mean of its divisors is an integer number (245400).

2^1226985 is an apocalyptic number.

1226985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226985 is a deficient number, since it is larger than the sum of its proper divisors (736215).

1226985 is an equidigital number, since it uses as much as digits as its factorization.

1226985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81807.

The product of its digits is 8640, while the sum is 33.

The square root of 1226985 is about 1107.6935496788. The cubic root of 1226985 is about 107.0565107496.

It can be divided in two parts, 1226 and 985, that added together give a triangular number (2211 = T₆₆).

The spelling of 1226985 in words is "one million, two hundred twenty-six thousand, nine hundred eighty-five".