29478143 has 2 divisors, whose sum is σ = 29478144. Its totient is φ = 29478142.

The previous prime is 29478133. The next prime is 29478149. The reversal of 29478143 is 34187492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29478143 - 2⁶ = 29478079 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 29478097 and 29478106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29478149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14739071 + 14739072.

It is an arithmetic number, because the mean of its divisors is an integer number (14739072).

Almost surely, 2^29478143 is an apocalyptic number.

29478143 is a deficient number, since it is larger than the sum of its proper divisors (1).

29478143 is an equidigital number, since it uses as much as digits as its factorization.

29478143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 29478143 is about 5429.3777728207. The cubic root of 29478143 is about 308.9110002967.

The spelling of 29478143 in words is "twenty-nine million, four hundred seventy-eight thousand, one hundred forty-three".