1081423225 has 9 divisors (see below), whose sum is σ = 1341168717. Its totient is φ = 865007040.

The previous prime is 1081423163. The next prime is 1081423229. The reversal of 1081423225 is 5223241801.

The square root of 1081423225 is 32885.

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 290463849 + 790959376 = 17043^2 + 28124^2 .

It is not a de Polignac number, because 1081423225 - 2¹⁷ = 1081292153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1081423193 and 1081423202.

It is not an unprimeable number, because it can be changed into a prime (1081423229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 161137 + ... + 167713.

Almost surely, 2^1081423225 is an apocalyptic number.

1081423225 is the 32885-th square number.

1081423225 is the 16443-rd centered octagonal number.

It is an amenable number.

1081423225 is a deficient number, since it is larger than the sum of its proper divisors (259745492).

1081423225 is an frugal number, since it uses more digits than its factorization.

1081423225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13164 (or 6582 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The cubic root of 1081423225 is about 1026.4360517585.

The spelling of 1081423225 in words is "one billion, eighty-one million, four hundred twenty-three thousand, two hundred twenty-five".