227204129 has 4 divisors (see below), whose sum is σ = 227421360. Its totient is φ = 226986900.

The previous prime is 227204119. The next prime is 227204137. The reversal of 227204129 is 921402722.

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, and also an emirpimes, since its reverse is a distinct semiprime: 921402722 = 2 ⋅460701361.

It is a cyclic number.

It is not a de Polignac number, because 227204129 - 2¹² = 227200033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (227204119) 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, 107039 + ... + 109140.

It is an arithmetic number, because the mean of its divisors is an integer number (56855340).

Almost surely, 2^227204129 is an apocalyptic number.

It is an amenable number.

227204129 is a deficient number, since it is larger than the sum of its proper divisors (217231).

227204129 is a wasteful number, since it uses less digits than its factorization.

227204129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217230.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 227204129 is about 15073.2919098649. The cubic root of 227204129 is about 610.1998171869.

The spelling of 227204129 in words is "two hundred twenty-seven million, two hundred four thousand, one hundred twenty-nine".