1000773225 has 135 divisors (see below), whose sum is σ = 2010787317. Its totient is φ = 491987520.

The previous prime is 1000773203. The next prime is 1000773233. The reversal of 1000773225 is 5223770001.

The square root of 1000773225 is 31635.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 95004009 + 905769216 = 9747^2 + 30096^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is a de Polignac number, because none of the positive numbers 2^k-1000773225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 27047907 + ... + 27047943.

Almost surely, 2^1000773225 is an apocalyptic number.

1000773225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1000773225 is the 31635-th square number.

1000773225 is the 15818-th centered octagonal number.

It is an amenable number.

1000773225 is an abundant number, since it is smaller than the sum of its proper divisors (1010014092).

1000773225 is an equidigital number, since it uses as much as digits as its factorization.

1000773225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The cubic root of 1000773225 is about 1000.2576752644.

The spelling of 1000773225 in words is "one billion, seven hundred seventy-three thousand, two hundred twenty-five".