229497497 has 2 divisors, whose sum is σ = 229497498. Its totient is φ = 229497496.

The previous prime is 229497487. The next prime is 229497517. The reversal of 229497497 is 794794922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143304841 + 86192656 = 11971^2 + 9284^2 .

It is a cyclic number.

It is not a de Polignac number, because 229497497 - 2⁴ = 229497481 is a prime.

It is a super-2 number, since 2×229497497² = 105338202258530018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229497487) 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 as a sum of consecutive naturals, namely, 114748748 + 114748749.

It is an arithmetic number, because the mean of its divisors is an integer number (114748749).

Almost surely, 2^229497497 is an apocalyptic number.

It is an amenable number.

229497497 is a deficient number, since it is larger than the sum of its proper divisors (1).

229497497 is an equidigital number, since it uses as much as digits as its factorization.

229497497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 229497497 is about 15149.1747960079. The cubic root of 229497497 is about 612.2460394881.

The spelling of 229497497 in words is "two hundred twenty-nine million, four hundred ninety-seven thousand, four hundred ninety-seven".