3501232081 has 2 divisors, whose sum is σ = 3501232082. Its totient is φ = 3501232080.

The previous prime is 3501232061. The next prime is 3501232151. The reversal of 3501232081 is 1802321053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3124251025 + 376981056 = 55895^2 + 19416^2 .

It is a cyclic number.

It is not a de Polignac number, because 3501232081 - 2¹³ = 3501223889 is a prime.

It is a super-2 number, since 2×3501232081² = 24517252170047181122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3501232061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1750616040 + 1750616041.

It is an arithmetic number, because the mean of its divisors is an integer number (1750616041).

Almost surely, 2^3501232081 is an apocalyptic number.

It is an amenable number.

3501232081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3501232081 is an equidigital number, since it uses as much as digits as its factorization.

3501232081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3501232081 is about 59171.2098997477. The cubic root of 3501232081 is about 1518.4726233022.

The spelling of 3501232081 in words is "three billion, five hundred one million, two hundred thirty-two thousand, eighty-one".