129546212 has 12 divisors (see below), whose sum is σ = 236562816. Its totient is φ = 61956840.

The previous prime is 129546191. The next prime is 129546217. The reversal of 129546212 is 212645921.

It is not an unprimeable number, because it can be changed into a prime (129546217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703964 + ... + 704147.

It is an arithmetic number, because the mean of its divisors is an integer number (19713568).

Almost surely, 2^129546212 is an apocalyptic number.

It is an amenable number.

129546212 is a deficient number, since it is larger than the sum of its proper divisors (107016604).

129546212 is a wasteful number, since it uses less digits than its factorization.

129546212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408138 (or 1408136 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 129546212 is about 11381.8369343441. The cubic root of 129546212 is about 505.9895793758.

The spelling of 129546212 in words is "one hundred twenty-nine million, five hundred forty-six thousand, two hundred twelve".