29961229 has 2 divisors, whose sum is σ = 29961230. Its totient is φ = 29961228.

The previous prime is 29961181. The next prime is 29961251. The reversal of 29961229 is 92216992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17015625 + 12945604 = 4125^2 + 3598^2 .

It is a cyclic number.

It is not a de Polignac number, because 29961229 - 2⁹ = 29960717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29961191 and 29961200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29961289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14980614 + 14980615.

It is an arithmetic number, because the mean of its divisors is an integer number (14980615).

Almost surely, 2^29961229 is an apocalyptic number.

It is an amenable number.

29961229 is a deficient number, since it is larger than the sum of its proper divisors (1).

29961229 is an equidigital number, since it uses as much as digits as its factorization.

29961229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 40.

The square root of 29961229 is about 5473.6851389169. The cubic root of 29961229 is about 310.5893367663.

It can be divided in two parts, 2996 and 1229, that added together give a square (4225 = 65²).

The spelling of 29961229 in words is "twenty-nine million, nine hundred sixty-one thousand, two hundred twenty-nine".