3545081 has 4 divisors (see below), whose sum is σ = 3640932. Its totient is φ = 3449232.

The previous prime is 3545071. The next prime is 3545083. The reversal of 3545081 is 1805453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1585081 + 1960000 = 1259^2 + 1400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3545081 is a prime.

It is a super-2 number, since 2×3545081² = 25135198593122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3545081.

It is not an unprimeable number, because it can be changed into a prime (3545083) 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, 47870 + ... + 47943.

It is an arithmetic number, because the mean of its divisors is an integer number (910233).

Almost surely, 2^3545081 is an apocalyptic number.

It is an amenable number.

3545081 is a deficient number, since it is larger than the sum of its proper divisors (95851).

3545081 is an equidigital number, since it uses as much as digits as its factorization.

3545081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95850.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 3545081 is about 1882.8385485750. The cubic root of 3545081 is about 152.4785385905.

The spelling of 3545081 in words is "three million, five hundred forty-five thousand, eighty-one".