211205034 has 12 divisors (see below), whose sum is σ = 457610946. Its totient is φ = 70401672.

The previous prime is 211205011. The next prime is 211205041. The reversal of 211205034 is 430502112.

It can be written as a sum of positive squares in only one way, i.e., 186732225 + 24472809 = 13665^2 + 4947^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11733613 = 211205034 / (2 + 1 + 1 + 2 + 0 + 5 + 0 + 3 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 211204998 and 211205016.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5866789 + ... + 5866824.

Almost surely, 2^211205034 is an apocalyptic number.

211205034 is an abundant number, since it is smaller than the sum of its proper divisors (246405912).

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

211205034 is a wasteful number, since it uses less digits than its factorization.

211205034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11733621 (or 11733618 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 211205034 is about 14532.8948939982. The cubic root of 211205034 is about 595.5269526131.

Adding to 211205034 its reverse (430502112), we get a palindrome (641707146).

The spelling of 211205034 in words is "two hundred eleven million, two hundred five thousand, thirty-four".