1228775 has 12 divisors (see below), whose sum is σ = 1590672. Its totient is φ = 939840.

The previous prime is 1228763. The next prime is 1228783. The reversal of 1228775 is 5778221.

It is not a de Polignac number, because 1228775 - 2⁸ = 1228519 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 11 ways as a sum of consecutive naturals, for example, 494 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (132556).

2^1228775 is an apocalyptic number.

1228775 is a deficient number, since it is larger than the sum of its proper divisors (361897).

1228775 is a wasteful number, since it uses less digits than its factorization.

1228775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170 (or 2165 counting only the distinct ones).

The product of its digits is 7840, while the sum is 32.

The square root of 1228775 is about 1108.5012404143. The cubic root of 1228775 is about 107.1085456270.

The spelling of 1228775 in words is "one million, two hundred twenty-eight thousand, seven hundred seventy-five".