1226335545 has 40 divisors (see below), whose sum is σ = 2327646024. Its totient is φ = 615568896.

The previous prime is 1226335483. The next prime is 1226335547. The reversal of 1226335545 is 5455336221.

1226335545 is a `hidden beast` number, since 1 + 2 + 263 + 355 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29452329 + 1196883216 = 5427^2 + 34596^2 .

It is not a de Polignac number, because 1226335545 - 2¹⁰ = 1226334521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226335547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 82174 + ... + 95943.

Almost surely, 2^1226335545 is an apocalyptic number.

1226335545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226335545 is a deficient number, since it is larger than the sum of its proper divisors (1101310479).

1226335545 is a wasteful number, since it uses less digits than its factorization.

1226335545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178151 (or 178142 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 1226335545 is about 35019.0740168840. The cubic root of 1226335545 is about 1070.3761873460.

The spelling of 1226335545 in words is "one billion, two hundred twenty-six million, three hundred thirty-five thousand, five hundred forty-five".