3541561117 has 4 divisors (see below), whose sum is σ = 3655805056. Its totient is φ = 3427317180.

The previous prime is 3541561109. The next prime is 3541561139. The reversal of 3541561117 is 7111651453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7111651453 = 4049 ⋅1756397.

It is a cyclic number.

It is not a de Polignac number, because 3541561117 - 2³ = 3541561109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3541561217) 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, 57121923 + ... + 57121984.

It is an arithmetic number, because the mean of its divisors is an integer number (913951264).

Almost surely, 2^3541561117 is an apocalyptic number.

It is an amenable number.

3541561117 is a deficient number, since it is larger than the sum of its proper divisors (114243939).

3541561117 is a wasteful number, since it uses less digits than its factorization.

3541561117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114243938.

The product of its digits is 12600, while the sum is 34.

The square root of 3541561117 is about 59511.0167700065. The cubic root of 3541561117 is about 1524.2805696596.

The spelling of 3541561117 in words is "three billion, five hundred forty-one million, five hundred sixty-one thousand, one hundred seventeen".