3541965409 has 4 divisors (see below), whose sum is σ = 3544802500. Its totient is φ = 3539128320.

The previous prime is 3541965403. The next prime is 3541965437. The reversal of 3541965409 is 9045691453.

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 1718931600 + 1823033809 = 41460^2 + 42697^2 .

It is a cyclic number.

It is not a de Polignac number, because 3541965409 - 2⁷ = 3541965281 is a prime.

It is a super-3 number, since 3×3541965409³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3541965403) 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, 1416672 + ... + 1419169.

It is an arithmetic number, because the mean of its divisors is an integer number (886200625).

Almost surely, 2^3541965409 is an apocalyptic number.

It is an amenable number.

3541965409 is a deficient number, since it is larger than the sum of its proper divisors (2837091).

3541965409 is a wasteful number, since it uses less digits than its factorization.

3541965409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837090.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 3541965409 is about 59514.4134559016. The cubic root of 3541965409 is about 1524.3385695991.

The spelling of 3541965409 in words is "three billion, five hundred forty-one million, nine hundred sixty-five thousand, four hundred nine".