3532031981 has 2 divisors, whose sum is σ = 3532031982. Its totient is φ = 3532031980.

The previous prime is 3532031977. The next prime is 3532032011. The reversal of 3532031981 is 1891302353.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1817657956 + 1714374025 = 42634^2 + 41405^2 .

It is an emirp because it is prime and its reverse (1891302353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3532031981 - 2² = 3532031977 is a prime.

It is a super-2 number, since 2×3532031981² = 24950499829613568722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3532031081) by changing a digit.

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 as a sum of consecutive naturals, namely, 1766015990 + 1766015991.

It is an arithmetic number, because the mean of its divisors is an integer number (1766015991).

Almost surely, 2^3532031981 is an apocalyptic number.

It is an amenable number.

3532031981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3532031981 is an equidigital number, since it uses as much as digits as its factorization.

3532031981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 3532031981 is about 59430.9008933905. The cubic root of 3532031981 is about 1522.9122348843.

The spelling of 3532031981 in words is "three billion, five hundred thirty-two million, thirty-one thousand, nine hundred eighty-one".