3501100081 has 4 divisors (see below), whose sum is σ = 3621827700. Its totient is φ = 3380372464.

The previous prime is 3501100079. The next prime is 3501100087. The reversal of 3501100081 is 1800011053.

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 1020163600 + 2480936481 = 31940^2 + 49809^2 .

It is a cyclic number.

It is not a de Polignac number, because 3501100081 - 2¹ = 3501100079 is a prime.

It is a super-2 number, since 2×3501100081² = 24515403554356413122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3501100087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60363766 + ... + 60363823.

It is an arithmetic number, because the mean of its divisors is an integer number (905456925).

Almost surely, 2^3501100081 is an apocalyptic number.

It is an amenable number.

3501100081 is a deficient number, since it is larger than the sum of its proper divisors (120727619).

3501100081 is a wasteful number, since it uses less digits than its factorization.

3501100081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120727618.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 3501100081 is about 59170.0944819256. The cubic root of 3501100081 is about 1518.4535404098.

The spelling of 3501100081 in words is "three billion, five hundred one million, one hundred thousand, eighty-one".