211034453 has 16 divisors (see below), whose sum is σ = 259792896. Its totient is φ = 167436720.

The previous prime is 211034449. The next prime is 211034471. The reversal of 211034453 is 354430112.

It is a cyclic number.

It is not a de Polignac number, because 211034453 - 2² = 211034449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211034443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16151 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (16237056).

Almost surely, 2^211034453 is an apocalyptic number.

211034453 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

211034453 is a deficient number, since it is larger than the sum of its proper divisors (48758443).

211034453 is a wasteful number, since it uses less digits than its factorization.

211034453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42344.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 211034453 is about 14527.0249190948. The cubic root of 211034453 is about 595.3665824707.

Adding to 211034453 its reverse (354430112), we get a palindrome (565464565).

It can be divided in two parts, 2110 and 34453, that added together give a palindrome (36563).

The spelling of 211034453 in words is "two hundred eleven million, thirty-four thousand, four hundred fifty-three".