229071649 has 2 divisors, whose sum is σ = 229071650. Its totient is φ = 229071648.

The previous prime is 229071637. The next prime is 229071659. The reversal of 229071649 is 946170922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150430225 + 78641424 = 12265^2 + 8868^2 .

It is a cyclic number.

It is not a de Polignac number, because 229071649 - 2¹¹ = 229069601 is a prime.

It is not a weakly prime, because it can be changed into another prime (229071659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114535824 + 114535825.

It is an arithmetic number, because the mean of its divisors is an integer number (114535825).

Almost surely, 2^229071649 is an apocalyptic number.

It is an amenable number.

229071649 is a deficient number, since it is larger than the sum of its proper divisors (1).

229071649 is an equidigital number, since it uses as much as digits as its factorization.

229071649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 229071649 is about 15135.1131148730. The cubic root of 229071649 is about 611.8671171545.

The spelling of 229071649 in words is "two hundred twenty-nine million, seventy-one thousand, six hundred forty-nine".