227422561 has 4 divisors (see below), whose sum is σ = 227613124. Its totient is φ = 227232000.

The previous prime is 227422537. The next prime is 227422621. The reversal of 227422561 is 165224722.

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 87142225 + 140280336 = 9335^2 + 11844^2 .

It is a cyclic number.

It is not a de Polignac number, because 227422561 - 2⁵ = 227422529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227422061) 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 3 ways as a sum of consecutive naturals, for example, 93480 + ... + 95881.

It is an arithmetic number, because the mean of its divisors is an integer number (56903281).

Almost surely, 2^227422561 is an apocalyptic number.

It is an amenable number.

227422561 is a deficient number, since it is larger than the sum of its proper divisors (190563).

227422561 is a wasteful number, since it uses less digits than its factorization.

227422561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190562.

The product of its digits is 13440, while the sum is 31.

The square root of 227422561 is about 15080.5358326553. The cubic root of 227422561 is about 610.3953014213.

The spelling of 227422561 in words is "two hundred twenty-seven million, four hundred twenty-two thousand, five hundred sixty-one".