29951147 has 2 divisors, whose sum is σ = 29951148. Its totient is φ = 29951146.

The previous prime is 29951123. The next prime is 29951149. The reversal of 29951147 is 74115992.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29951147 - 2¹⁴ = 29934763 is a prime.

Together with 29951149, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29951147.

It is not a weakly prime, because it can be changed into another prime (29951149) 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, 14975573 + 14975574.

It is an arithmetic number, because the mean of its divisors is an integer number (14975574).

Almost surely, 2^29951147 is an apocalyptic number.

29951147 is a deficient number, since it is larger than the sum of its proper divisors (1).

29951147 is an equidigital number, since it uses as much as digits as its factorization.

29951147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 29951147 is about 5472.7641096616. The cubic root of 29951147 is about 310.5544949269.

The spelling of 29951147 in words is "twenty-nine million, nine hundred fifty-one thousand, one hundred forty-seven".