229761131 has 2 divisors, whose sum is σ = 229761132. Its totient is φ = 229761130.

The previous prime is 229761107. The next prime is 229761139. The reversal of 229761131 is 131167922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229761131 - 2¹⁰ = 229760107 is a prime.

It is a super-2 number, since 2×229761131² = 105580354636798322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229761139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114880565 + 114880566.

It is an arithmetic number, because the mean of its divisors is an integer number (114880566).

Almost surely, 2^229761131 is an apocalyptic number.

229761131 is a deficient number, since it is larger than the sum of its proper divisors (1).

229761131 is an equidigital number, since it uses as much as digits as its factorization.

229761131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 229761131 is about 15157.8735645868. The cubic root of 229761131 is about 612.4803878768.

The spelling of 229761131 in words is "two hundred twenty-nine million, seven hundred sixty-one thousand, one hundred thirty-one".