129052628 has 12 divisors (see below), whose sum is σ = 233127552. Its totient is φ = 62444760.

The previous prime is 129052607. The next prime is 129052643. The reversal of 129052628 is 826250921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520250 + ... + 520497.

It is an arithmetic number, because the mean of its divisors is an integer number (19427296).

Almost surely, 2^129052628 is an apocalyptic number.

It is an amenable number.

129052628 is a deficient number, since it is larger than the sum of its proper divisors (104074924).

129052628 is a wasteful number, since it uses less digits than its factorization.

129052628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040782 (or 1040780 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 129052628 is about 11360.1332738661. The cubic root of 129052628 is about 505.3461378874.

The spelling of 129052628 in words is "one hundred twenty-nine million, fifty-two thousand, six hundred twenty-eight".