129036670 has 32 divisors (see below), whose sum is σ = 276991488. Its totient is φ = 42317088.

The previous prime is 129036643. The next prime is 129036671. The reversal of 129036670 is 76630921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129036671) 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 15 ways as a sum of consecutive naturals, for example, 38464 + ... + 41683.

It is an arithmetic number, because the mean of its divisors is an integer number (8655984).

Almost surely, 2^129036670 is an apocalyptic number.

129036670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129036670 is an abundant number, since it is smaller than the sum of its proper divisors (147954818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129036670 is a wasteful number, since it uses less digits than its factorization.

129036670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80184.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 129036670 is about 11359.4308836315. The cubic root of 129036670 is about 505.3253075068.

The spelling of 129036670 in words is "one hundred twenty-nine million, thirty-six thousand, six hundred seventy".