2293561 has 4 divisors (see below), whose sum is σ = 2313972. Its totient is φ = 2273152.

The previous prime is 2293559. The next prime is 2293567. The reversal of 2293561 is 1653922.

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 430336 + 1863225 = 656^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 2293561 - 2¹ = 2293559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2293567) 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, 10036 + ... + 10261.

It is an arithmetic number, because the mean of its divisors is an integer number (578493).

2^2293561 is an apocalyptic number.

It is an amenable number.

2293561 is a deficient number, since it is larger than the sum of its proper divisors (20411).

2293561 is a wasteful number, since it uses less digits than its factorization.

2293561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410.

The product of its digits is 3240, while the sum is 28.

The square root of 2293561 is about 1514.4507255107. The cubic root of 2293561 is about 131.8773156081.

The spelling of 2293561 in words is "two million, two hundred ninety-three thousand, five hundred sixty-one".