229725705 has 16 divisors (see below), whose sum is σ = 400976064. Its totient is φ = 111382080.

The previous prime is 229725703. The next prime is 229725719. The reversal of 229725705 is 507527922.

It is not a de Polignac number, because 229725705 - 2¹ = 229725703 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (229725703) 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 15 ways as a sum of consecutive naturals, for example, 695974 + ... + 696303.

It is an arithmetic number, because the mean of its divisors is an integer number (25061004).

Almost surely, 2^229725705 is an apocalyptic number.

It is an amenable number.

229725705 is a deficient number, since it is larger than the sum of its proper divisors (171250359).

229725705 is a wasteful number, since it uses less digits than its factorization.

229725705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392296.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 229725705 is about 15156.7049519346. The cubic root of 229725705 is about 612.4489075805.

The spelling of 229725705 in words is "two hundred twenty-nine million, seven hundred twenty-five thousand, seven hundred five".