29029139 has 2 divisors, whose sum is σ = 29029140. Its totient is φ = 29029138.

The previous prime is 29029123. The next prime is 29029141. The reversal of 29029139 is 93192092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29029139 - 2⁴ = 29029123 is a prime.

It is a super-2 number, since 2×29029139² = 1685381822162642, which contains 22 as substring.

Together with 29029141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 29029099 and 29029108.

It is not a weakly prime, because it can be changed into another prime (29029199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14514569 + 14514570.

It is an arithmetic number, because the mean of its divisors is an integer number (14514570).

Almost surely, 2^29029139 is an apocalyptic number.

29029139 is a deficient number, since it is larger than the sum of its proper divisors (1).

29029139 is an equidigital number, since it uses as much as digits as its factorization.

29029139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 29029139 is about 5387.8696160913. The cubic root of 29029139 is about 307.3345495482.

The spelling of 29029139 in words is "twenty-nine million, twenty-nine thousand, one hundred thirty-nine".