211494534 has 16 divisors (see below), whose sum is σ = 428344320. Its totient is φ = 69605640.

The previous prime is 211494533. The next prime is 211494551. The reversal of 211494534 is 435494112.

It is a junction number, because it is equal to n+sod(n) for n = 211494495 and 211494504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211494533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222622 + ... + 223569.

It is an arithmetic number, because the mean of its divisors is an integer number (26771520).

Almost surely, 2^211494534 is an apocalyptic number.

211494534 is an abundant number, since it is smaller than the sum of its proper divisors (216849786).

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

211494534 is a wasteful number, since it uses less digits than its factorization.

211494534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446275.

The product of its digits is 17280, while the sum is 33.

The square root of 211494534 is about 14542.8516460837. The cubic root of 211494534 is about 595.7989258346.

The spelling of 211494534 in words is "two hundred eleven million, four hundred ninety-four thousand, five hundred thirty-four".