1081225924 has 27 divisors (see below), whose sum is σ = 1944269383. Its totient is φ = 526112000.

The previous prime is 1081225921. The next prime is 1081225931. The reversal of 1081225924 is 4295221801.

The square root of 1081225924 is 32882.

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 15856324 + 1065369600 = 3982^2 + 32640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081225924.

It is not an unprimeable number, because it can be changed into a prime (1081225921) 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 8 ways as a sum of consecutive naturals, for example, 2696124 + ... + 2696524.

Almost surely, 2^1081225924 is an apocalyptic number.

1081225924 is the 32882-nd square number.

It is an amenable number.

1081225924 is a deficient number, since it is larger than the sum of its proper divisors (863043459).

1081225924 is an frugal number, since it uses more digits than its factorization.

1081225924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The cubic root of 1081225924 is about 1026.3736250193.

The spelling of 1081225924 in words is "one billion, eighty-one million, two hundred twenty-five thousand, nine hundred twenty-four".