227029409 has 2 divisors, whose sum is σ = 227029410. Its totient is φ = 227029408.

The previous prime is 227029403. The next prime is 227029417. The reversal of 227029409 is 904920722.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208513600 + 18515809 = 14440^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 227029409 - 2¹² = 227025313 is a prime.

It is equal to p_12488318 and since 227029409 and 12488318 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (227029403) 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 as a sum of consecutive naturals, namely, 113514704 + 113514705.

It is an arithmetic number, because the mean of its divisors is an integer number (113514705).

Almost surely, 2^227029409 is an apocalyptic number.

It is an amenable number.

227029409 is a deficient number, since it is larger than the sum of its proper divisors (1).

227029409 is an equidigital number, since it uses as much as digits as its factorization.

227029409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 227029409 is about 15067.4951136544. The cubic root of 227029409 is about 610.0433625002.

The spelling of 227029409 in words is "two hundred twenty-seven million, twenty-nine thousand, four hundred nine".