29742143 has 2 divisors, whose sum is σ = 29742144. Its totient is φ = 29742142.

The previous prime is 29742127. The next prime is 29742173. The reversal of 29742143 is 34124792.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29742143 - 2⁴ = 29742127 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29742173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14871071 + 14871072.

It is an arithmetic number, because the mean of its divisors is an integer number (14871072).

Almost surely, 2^29742143 is an apocalyptic number.

29742143 is a deficient number, since it is larger than the sum of its proper divisors (1).

29742143 is an equidigital number, since it uses as much as digits as its factorization.

29742143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 29742143 is about 5453.6357597478. The cubic root of 29742143 is about 309.8304414404.

The spelling of 29742143 in words is "twenty-nine million, seven hundred forty-two thousand, one hundred forty-three".