129316048 has 40 divisors (see below), whose sum is σ = 255340800. Its totient is φ = 63433344.

The previous prime is 129316037. The next prime is 129316049. The reversal of 129316048 is 840613921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129316049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332238 + ... + 332626.

It is an arithmetic number, because the mean of its divisors is an integer number (6383520).

Almost surely, 2^129316048 is an apocalyptic number.

It is an amenable number.

129316048 is a deficient number, since it is larger than the sum of its proper divisors (126024752).

129316048 is a wasteful number, since it uses less digits than its factorization.

129316048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 129316048 is about 11371.7214176219. The cubic root of 129316048 is about 505.6897388182.

Adding to 129316048 its reverse (840613921), we get a palindrome (969929969).

The spelling of 129316048 in words is "one hundred twenty-nine million, three hundred sixteen thousand, forty-eight".