211234145 has 8 divisors (see below), whose sum is σ = 255037056. Its totient is φ = 167949936.

The previous prime is 211234099. The next prime is 211234193. The reversal of 211234145 is 541432112.

211234145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211234145 - 2⁸ = 211233889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211234145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128777 + ... + 130406.

It is an arithmetic number, because the mean of its divisors is an integer number (31879632).

Almost surely, 2^211234145 is an apocalyptic number.

It is an amenable number.

211234145 is a deficient number, since it is larger than the sum of its proper divisors (43802911).

211234145 is a wasteful number, since it uses less digits than its factorization.

211234145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259351.

The product of its digits is 960, while the sum is 23.

The square root of 211234145 is about 14533.8964149329. The cubic root of 211234145 is about 595.5543124229.

Adding to 211234145 its reverse (541432112), we get a palindrome (752666257).

The spelling of 211234145 in words is "two hundred eleven million, two hundred thirty-four thousand, one hundred forty-five".