227159809 has 4 divisors (see below), whose sum is σ = 227273904. Its totient is φ = 227045716.

The previous prime is 227159711. The next prime is 227159819. The reversal of 227159809 is 908951722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 227159809 - 2¹⁵ = 227127041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227159819) 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, 54007 + ... + 58060.

It is an arithmetic number, because the mean of its divisors is an integer number (56818476).

Almost surely, 2^227159809 is an apocalyptic number.

It is an amenable number.

227159809 is a deficient number, since it is larger than the sum of its proper divisors (114095).

227159809 is a wasteful number, since it uses less digits than its factorization.

227159809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114094.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 227159809 is about 15071.8216881703. The cubic root of 227159809 is about 610.1601380158.

The spelling of 227159809 in words is "two hundred twenty-seven million, one hundred fifty-nine thousand, eight hundred nine".