9929149 has 2 divisors, whose sum is σ = 9929150. Its totient is φ = 9929148.

The previous prime is 9929141. The next prime is 9929159. The reversal of 9929149 is 9419299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9672100 + 257049 = 3110^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 9929149 - 2³ = 9929141 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9929141) 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 as a sum of consecutive naturals, namely, 4964574 + 4964575.

It is an arithmetic number, because the mean of its divisors is an integer number (4964575).

Almost surely, 2^9929149 is an apocalyptic number.

It is an amenable number.

9929149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9929149 is an equidigital number, since it uses as much as digits as its factorization.

9929149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 43.

The square root of 9929149 is about 3151.0552200810. The cubic root of 9929149 is about 214.9334497468.

The spelling of 9929149 in words is "nine million, nine hundred twenty-nine thousand, one hundred forty-nine".