226545 has 16 divisors (see below), whose sum is σ = 395712. Its totient is φ = 109760.

The previous prime is 226531. The next prime is 226547. The reversal of 226545 is 545622.

226545 = T₇₇ + T₇₈ + ... + T₁₂₁.

It is not a de Polignac number, because 226545 - 2¹⁶ = 161009 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (226547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 522 + ... + 851.

It is an arithmetic number, because the mean of its divisors is an integer number (24732).

2²²⁶⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

226545 is a deficient number, since it is larger than the sum of its proper divisors (169167).

226545 is a wasteful number, since it uses less digits than its factorization.

226545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its digits is 2400, while the sum is 24.

The square root of 226545 is about 475.9674358609. The cubic root of 226545 is about 60.9609173641.

The spelling of 226545 in words is "two hundred twenty-six thousand, five hundred forty-five".