1226355 has 32 divisors (see below), whose sum is σ = 2231040. Its totient is φ = 570240.

The previous prime is 1226353. The next prime is 1226377. The reversal of 1226355 is 5536221.

It is not a de Polignac number, because 1226355 - 2¹ = 1226353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3540 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (69720).

2^1226355 is an apocalyptic number.

1226355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1226355 is a deficient number, since it is larger than the sum of its proper divisors (1004685).

1226355 is a wasteful number, since it uses less digits than its factorization.

1226355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its digits is 1800, while the sum is 24.

The square root of 1226355 is about 1107.4091384850. The cubic root of 1226355 is about 107.0381847586.

The spelling of 1226355 in words is "one million, two hundred twenty-six thousand, three hundred fifty-five".