3540204561 has 8 divisors (see below), whose sum is σ = 4777143840. Its totient is φ = 2331700832.

The previous prime is 3540204539. The next prime is 3540204571. The reversal of 3540204561 is 1654020453.

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

It is a cyclic number.

It is not a de Polignac number, because 3540204561 - 2²⁶ = 3473095697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3540204571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7108596 + ... + 7109093.

It is an arithmetic number, because the mean of its divisors is an integer number (597142980).

Almost surely, 2^3540204561 is an apocalyptic number.

It is an amenable number.

3540204561 is a deficient number, since it is larger than the sum of its proper divisors (1236939279).

3540204561 is a wasteful number, since it uses less digits than its factorization.

3540204561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14217775.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 3540204561 is about 59499.6181584386. The cubic root of 3540204561 is about 1524.0859251744.

The spelling of 3540204561 in words is "three billion, five hundred forty million, two hundred four thousand, five hundred sixty-one".