129070211 has 8 divisors (see below), whose sum is σ = 138427920. Its totient is φ = 119968992.

The previous prime is 129070189. The next prime is 129070241. The reversal of 129070211 is 112070921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129070211 - 2¹⁸ = 128808067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129070241) 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, 63080 + ... + 65093.

It is an arithmetic number, because the mean of its divisors is an integer number (17303490).

Almost surely, 2^129070211 is an apocalyptic number.

129070211 is a deficient number, since it is larger than the sum of its proper divisors (9357709).

129070211 is a wasteful number, since it uses less digits than its factorization.

129070211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128245.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 129070211 is about 11360.9071380766. The cubic root of 129070211 is about 505.3690874333.

The spelling of 129070211 in words is "one hundred twenty-nine million, seventy thousand, two hundred eleven".