129360916 has 12 divisors (see below), whose sum is σ = 230653332. Its totient is φ = 63459968.

The previous prime is 129360859. The next prime is 129360919. The reversal of 129360916 is 619063921.

It can be written as a sum of positive squares in 2 ways, for example, as 102941316 + 26419600 = 10146^2 + 5140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129360919) 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, 304885 + ... + 305308.

It is an arithmetic number, because the mean of its divisors is an integer number (19221111).

Almost surely, 2^129360916 is an apocalyptic number.

It is an amenable number.

129360916 is a deficient number, since it is larger than the sum of its proper divisors (101292416).

129360916 is a wasteful number, since it uses less digits than its factorization.

129360916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610250 (or 610248 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 129360916 is about 11373.6940349211. The cubic root of 129360916 is about 505.7482174162.

The spelling of 129360916 in words is "one hundred twenty-nine million, three hundred sixty thousand, nine hundred sixteen".