1081332225 has 36 divisors (see below), whose sum is σ = 1938999036. Its totient is φ = 576051840.

The previous prime is 1081332221. The next prime is 1081332227. The reversal of 1081332225 is 5222331801.

1081332225 is a `hidden beast` number, since 108 + 1 + 332 + 225 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 34680321 + 1046651904 = 5889^2 + 32352^2 .

It is not a de Polignac number, because 1081332225 - 2² = 1081332221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1081332221) 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 35 ways as a sum of consecutive naturals, for example, 243727 + ... + 248123.

Almost surely, 2^1081332225 is an apocalyptic number.

1081332225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1081332225 is a deficient number, since it is larger than the sum of its proper divisors (857666811).

1081332225 is a wasteful number, since it uses less digits than its factorization.

1081332225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506 (or 5498 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1081332225 is about 32883.6163613432. The cubic root of 1081332225 is about 1026.4072599778.

The spelling of 1081332225 in words is "one billion, eighty-one million, three hundred thirty-two thousand, two hundred twenty-five".