229537505 has 16 divisors (see below), whose sum is σ = 277992000. Its totient is φ = 181941312.

The previous prime is 229537501. The next prime is 229537507. The reversal of 229537505 is 505735922.

It is a cyclic number.

It is not a de Polignac number, because 229537505 - 2² = 229537501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229537501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459746 + ... + 460244.

It is an arithmetic number, because the mean of its divisors is an integer number (17374500).

Almost surely, 2^229537505 is an apocalyptic number.

It is an amenable number.

229537505 is a deficient number, since it is larger than the sum of its proper divisors (48454495).

229537505 is a wasteful number, since it uses less digits than its factorization.

229537505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 229537505 is about 15150.4952064281. The cubic root of 229537505 is about 612.2816147727.

The spelling of 229537505 in words is "two hundred twenty-nine million, five hundred thirty-seven thousand, five hundred five".