29158439 has 2 divisors, whose sum is σ = 29158440. Its totient is φ = 29158438.

The previous prime is 29158399. The next prime is 29158453. The reversal of 29158439 is 93485192.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29158439 - 2²⁴ = 12381223 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 29158396 and 29158405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29158489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14579219 + 14579220.

It is an arithmetic number, because the mean of its divisors is an integer number (14579220).

Almost surely, 2^29158439 is an apocalyptic number.

29158439 is a deficient number, since it is larger than the sum of its proper divisors (1).

29158439 is an equidigital number, since it uses as much as digits as its factorization.

29158439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The square root of 29158439 is about 5399.8554610286. The cubic root of 29158439 is about 307.7901779736.

The spelling of 29158439 in words is "twenty-nine million, one hundred fifty-eight thousand, four hundred thirty-nine".