29138 has 8 divisors (see below), whose sum is σ = 46332. Its totient is φ = 13696.

The previous prime is 29137. The next prime is 29147. The reversal of 29138 is 83192.

It can be written as a sum of positive squares in 2 ways, for example, as 24649 + 4489 = 157^2 + 67^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (29131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395 + ... + 462.

2²⁹¹³⁸ is an apocalyptic number.

29138 is a deficient number, since it is larger than the sum of its proper divisors (17194).

29138 is a wasteful number, since it uses less digits than its factorization.

29138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876.

The product of its digits is 432, while the sum is 23.

The square root of 29138 is about 170.6985647274. The cubic root of 29138 is about 30.7718244608.

Adding to 29138 its sum of digits (23), we get a triangular number (29161 = T₂₄₁).

The spelling of 29138 in words is "twenty-nine thousand, one hundred thirty-eight".