3632581145 has 4 divisors (see below), whose sum is σ = 4359097380. Its totient is φ = 2906064912.

The previous prime is 3632581091. The next prime is 3632581163. The reversal of 3632581145 is 5411852363.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1167657241 + 2464923904 = 34171^2 + 49648^2 .

It is a cyclic number.

It is not a de Polignac number, because 3632581145 - 2²⁴ = 3615803929 is a prime.

It is a super-2 number, since 2×3632581145² = 26391291550019022050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3632581099 and 3632581108.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 363258110 + ... + 363258119.

It is an arithmetic number, because the mean of its divisors is an integer number (1089774345).

Almost surely, 2^3632581145 is an apocalyptic number.

It is an amenable number.

3632581145 is a deficient number, since it is larger than the sum of its proper divisors (726516235).

3632581145 is an equidigital number, since it uses as much as digits as its factorization.

3632581145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726516234.

The product of its digits is 86400, while the sum is 38.

The square root of 3632581145 is about 60270.8979939738. The cubic root of 3632581145 is about 1537.2285489882.

The spelling of 3632581145 in words is "three billion, six hundred thirty-two million, five hundred eighty-one thousand, one hundred forty-five".