3561145 has 8 divisors (see below), whose sum is σ = 4883904. Its totient is φ = 2441904.

The previous prime is 3561133. The next prime is 3561149. The reversal of 3561145 is 5411653.

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 3561145 - 2¹¹ = 3559097 is a prime.

It is a super-2 number, since 2×3561145² = 25363507422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3561149) 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, 50839 + ... + 50908.

It is an arithmetic number, because the mean of its divisors is an integer number (610488).

Almost surely, 2^3561145 is an apocalyptic number.

3561145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3561145 is a deficient number, since it is larger than the sum of its proper divisors (1322759).

3561145 is a wasteful number, since it uses less digits than its factorization.

3561145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101759.

The product of its digits is 1800, while the sum is 25.

The square root of 3561145 is about 1887.0996264109. The cubic root of 3561145 is about 152.7085027588.

Adding to 3561145 its reverse (5411653), we get a palindrome (8972798).

The spelling of 3561145 in words is "three million, five hundred sixty-one thousand, one hundred forty-five".