2258545 has 4 divisors (see below), whose sum is σ = 2710260. Its totient is φ = 1806832.

The previous prime is 2258539. The next prime is 2258561. The reversal of 2258545 is 5458522.

2258545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5458522 = 2 ⋅2729261.

It can be written as a sum of positive squares in 2 ways, for example, as 1656369 + 602176 = 1287^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 2258545 - 2⁹ = 2258033 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225850 + ... + 225859.

It is an arithmetic number, because the mean of its divisors is an integer number (677565).

2^2258545 is an apocalyptic number.

It is an amenable number.

2258545 is a deficient number, since it is larger than the sum of its proper divisors (451715).

2258545 is an equidigital number, since it uses as much as digits as its factorization.

2258545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451714.

The product of its digits is 16000, while the sum is 31.

The square root of 2258545 is about 1502.8456341221. The cubic root of 2258545 is about 131.2027433803.

The spelling of 2258545 in words is "two million, two hundred fifty-eight thousand, five hundred forty-five".