1226895 has 16 divisors (see below), whose sum is σ = 1976832. Its totient is φ = 649760.

The previous prime is 1226891. The next prime is 1226899. The reversal of 1226895 is 5986221.

It is an interprime number because it is at equal distance from previous prime (1226891) and next prime (1226899).

It is not a de Polignac number, because 1226895 - 2² = 1226891 is a prime.

1226895 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226891) 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 15 ways as a sum of consecutive naturals, for example, 3790 + ... + 4100.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

2^1226895 is an apocalyptic number.

1226895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1226895 is a deficient number, since it is larger than the sum of its proper divisors (749937).

1226895 is a wasteful number, since it uses less digits than its factorization.

1226895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582.

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

The square root of 1226895 is about 1107.6529239793. The cubic root of 1226895 is about 107.0538931350.

The spelling of 1226895 in words is "one million, two hundred twenty-six thousand, eight hundred ninety-five".