3545549 has 4 divisors (see below), whose sum is σ = 4052064. Its totient is φ = 3039036.

The previous prime is 3545497. The next prime is 3545567. The reversal of 3545549 is 9455453.

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: 9455453 = 7 ⋅1350779.

It is not a de Polignac number, because 3545549 - 2⁸ = 3545293 is a prime.

It is a super-2 number, since 2×3545549² = 25141835422802, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545249) 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, 253247 + ... + 253260.

It is an arithmetic number, because the mean of its divisors is an integer number (1013016).

Almost surely, 2^3545549 is an apocalyptic number.

It is an amenable number.

3545549 is a deficient number, since it is larger than the sum of its proper divisors (506515).

3545549 is an equidigital number, since it uses as much as digits as its factorization.

3545549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506514.

The product of its digits is 54000, while the sum is 35.

The square root of 3545549 is about 1882.9628249118. The cubic root of 3545549 is about 152.4852480579.

The spelling of 3545549 in words is "three million, five hundred forty-five thousand, five hundred forty-nine".