29148138 has 12 divisors (see below), whose sum is σ = 63154338. Its totient is φ = 9716040.

The previous prime is 29148121. The next prime is 29148143. The reversal of 29148138 is 83184192.

It can be written as a sum of positive squares in only one way, i.e., 21874329 + 7273809 = 4677^2 + 2697^2 .

It is a super-2 number, since 2×29148138² = 1699227897734088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 809653 + ... + 809688.

Almost surely, 2^29148138 is an apocalyptic number.

29148138 is an abundant number, since it is smaller than the sum of its proper divisors (34006200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29148138 is a wasteful number, since it uses less digits than its factorization.

29148138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619349 (or 1619346 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 29148138 is about 5398.9015549462. The cubic root of 29148138 is about 307.7539286617.

The spelling of 29148138 in words is "twenty-nine million, one hundred forty-eight thousand, one hundred thirty-eight".