3581545 has 8 divisors (see below), whose sum is σ = 4688640. Its totient is φ = 2604720.

The previous prime is 3581521. The next prime is 3581549. The reversal of 3581545 is 5451853.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3581545 - 2¹¹ = 3579497 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 32505 + ... + 32614.

It is an arithmetic number, because the mean of its divisors is an integer number (586080).

Almost surely, 2^3581545 is an apocalyptic number.

It is an amenable number.

3581545 is a deficient number, since it is larger than the sum of its proper divisors (1107095).

3581545 is a wasteful number, since it uses less digits than its factorization.

3581545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65135.

The product of its digits is 12000, while the sum is 31.

The square root of 3581545 is about 1892.4970277387. The cubic root of 3581545 is about 152.9995443334. Note that the first 3 decimals are identical.

The spelling of 3581545 in words is "three million, five hundred eighty-one thousand, five hundred forty-five".