211449129 has 4 divisors (see below), whose sum is σ = 281932176. Its totient is φ = 140966084.

The previous prime is 211449113. The next prime is 211449169. The reversal of 211449129 is 921944112.

211449129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211449129 - 2⁴ = 211449113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211449129.

It is not an unprimeable number, because it can be changed into a prime (211449169) 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, 35241519 + ... + 35241524.

It is an arithmetic number, because the mean of its divisors is an integer number (70483044).

Almost surely, 2^211449129 is an apocalyptic number.

It is an amenable number.

211449129 is a deficient number, since it is larger than the sum of its proper divisors (70483047).

211449129 is an equidigital number, since it uses as much as digits as its factorization.

211449129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70483046.

The product of its digits is 5184, while the sum is 33.

The square root of 211449129 is about 14541.2904860607. The cubic root of 211449129 is about 595.7562861410.

The spelling of 211449129 in words is "two hundred eleven million, four hundred forty-nine thousand, one hundred twenty-nine".