211461130 has 16 divisors (see below), whose sum is σ = 403020360. Its totient is φ = 79608832.

The previous prime is 211461121. The next prime is 211461157. The reversal of 211461130 is 31164112.

It can be written as a sum of positive squares in 4 ways, for example, as 162894169 + 48566961 = 12763^2 + 6969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211461098 and 211461107.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 621775 + ... + 622114.

Almost surely, 2^211461130 is an apocalyptic number.

211461130 is a deficient number, since it is larger than the sum of its proper divisors (191559230).

211461130 is a wasteful number, since it uses less digits than its factorization.

211461130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243913.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 211461130 is about 14541.7031327145. The cubic root of 211461130 is about 595.7675568361.

The spelling of 211461130 in words is "two hundred eleven million, four hundred sixty-one thousand, one hundred thirty".