9923148229 has 2 divisors, whose sum is σ = 9923148230. Its totient is φ = 9923148228.

The previous prime is 9923148199. The next prime is 9923148233. The reversal of 9923148229 is 9228413299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9923148225 + 4 = 99615^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 9923148229 - 2⁵ = 9923148197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9923148269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961574114 + 4961574115.

It is an arithmetic number, because the mean of its divisors is an integer number (4961574115).

Almost surely, 2^9923148229 is an apocalyptic number.

It is an amenable number.

9923148229 is a deficient number, since it is larger than the sum of its proper divisors (1).

9923148229 is an equidigital number, since it uses as much as digits as its factorization.

9923148229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 9923148229 is about 99615.0000200773. Note that the first 4 decimals coincide. The cubic root of 9923148229 is about 2148.9014202969.

The spelling of 9923148229 in words is "nine billion, nine hundred twenty-three million, one hundred forty-eight thousand, two hundred twenty-nine".