3601615541 has 4 divisors (see below), whose sum is σ = 3601766784. Its totient is φ = 3601464300.

The previous prime is 3601615487. The next prime is 3601615553. The reversal of 3601615541 is 1455161063.

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: 1455161063 = 83 ⋅17532061.

It is a cyclic number.

It is not a de Polignac number, because 3601615541 - 2¹⁰ = 3601614517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3601615498 and 3601615507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3601615571) 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 in 3 ways as a sum of consecutive naturals, for example, 31205 + ... + 90426.

It is an arithmetic number, because the mean of its divisors is an integer number (900441696).

Almost surely, 2^3601615541 is an apocalyptic number.

It is an amenable number.

3601615541 is a deficient number, since it is larger than the sum of its proper divisors (151243).

3601615541 is a wasteful number, since it uses less digits than its factorization.

3601615541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151242.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 3601615541 is about 60013.4613316046. The cubic root of 3601615541 is about 1532.8480905581.

The spelling of 3601615541 in words is "three billion, six hundred one million, six hundred fifteen thousand, five hundred forty-one".