3581541 has 12 divisors (see below), whose sum is σ = 5284032. Its totient is φ = 2336616.

The previous prime is 3581521. The next prime is 3581549. The reversal of 3581541 is 1451853.

It is not a de Polignac number, because 3581541 - 2⁹ = 3581029 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3811 + ... + 4656.

It is an arithmetic number, because the mean of its divisors is an integer number (440336).

Almost surely, 2^3581541 is an apocalyptic number.

It is an amenable number.

3581541 is a deficient number, since it is larger than the sum of its proper divisors (1702491).

3581541 is a wasteful number, since it uses less digits than its factorization.

3581541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520 (or 8517 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 3581541 is about 1892.4959709336. The cubic root of 3581541 is about 152.9994873749. Note that the first 3 decimals are identical.

The spelling of 3581541 in words is "three million, five hundred eighty-one thousand, five hundred forty-one".