129336148 has 6 divisors (see below), whose sum is σ = 226338266. Its totient is φ = 64668072.

The previous prime is 129336139. The next prime is 129336149. The reversal of 129336148 is 841633921.

It can be written as a sum of positive squares in only one way, i.e., 84419344 + 44916804 = 9188^2 + 6702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129336149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16167015 + ... + 16167022.

Almost surely, 2^129336148 is an apocalyptic number.

It is an amenable number.

129336148 is a deficient number, since it is larger than the sum of its proper divisors (97002118).

129336148 is a wasteful number, since it uses less digits than its factorization.

129336148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32334041 (or 32334039 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 129336148 is about 11372.6051544930. The cubic root of 129336148 is about 505.7159377763.

The spelling of 129336148 in words is "one hundred twenty-nine million, three hundred thirty-six thousand, one hundred forty-eight".