29138859 has 14 divisors (see below), whose sum is σ = 43689396. Its totient is φ = 19425420.

The previous prime is 29138839. The next prime is 29138891. The reversal of 29138859 is 95883192.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-29138859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29138839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 19257 + ... + 20714.

Almost surely, 2^29138859 is an apocalyptic number.

29138859 is a deficient number, since it is larger than the sum of its proper divisors (14550537).

29138859 is an frugal number, since it uses more digits than its factorization.

29138859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39989 (or 39974 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 29138859 is about 5398.0421450745. The cubic root of 29138859 is about 307.7212684648.

The spelling of 29138859 in words is "twenty-nine million, one hundred thirty-eight thousand, eight hundred fifty-nine".