3245561 has 16 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 2733120.

The previous prime is 3245551. The next prime is 3245569. The reversal of 3245561 is 1655423.

It is a cyclic number.

It is not a de Polignac number, because 3245561 - 2¹⁸ = 2983417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3245561.

It is not an unprimeable number, because it can be changed into a prime (3245569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10931 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

Almost surely, 2^3245561 is an apocalyptic number.

It is an amenable number.

3245561 is a deficient number, since it is larger than the sum of its proper divisors (564679).

3245561 is a wasteful number, since it uses less digits than its factorization.

3245561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its digits is 3600, while the sum is 26.

The square root of 3245561 is about 1801.5440599663. The cubic root of 3245561 is about 148.0573341291.

It can be divided in two parts, 324 and 5561, that added together give a palindrome (5885).

The spelling of 3245561 in words is "three million, two hundred forty-five thousand, five hundred sixty-one".