229239131 has 16 divisors (see below), whose sum is σ = 255225600. Its totient is φ = 204136800.

The previous prime is 229239121. The next prime is 229239133. The reversal of 229239131 is 131932922.

It is a cyclic number.

It is not a de Polignac number, because 229239131 - 2¹⁸ = 228976987 is a prime.

It is a super-2 number, since 2×229239131² = 105101158363270322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229239133) 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, 272810 + ... + 273648.

It is an arithmetic number, because the mean of its divisors is an integer number (15951600).

Almost surely, 2^229239131 is an apocalyptic number.

229239131 is a deficient number, since it is larger than the sum of its proper divisors (25986469).

229239131 is a wasteful number, since it uses less digits than its factorization.

229239131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its digits is 5832, while the sum is 32.

The square root of 229239131 is about 15140.6449994708. The cubic root of 229239131 is about 612.0161997150.

The spelling of 229239131 in words is "two hundred twenty-nine million, two hundred thirty-nine thousand, one hundred thirty-one".