213081160 has 32 divisors (see below), whose sum is σ = 486006840. Its totient is φ = 84063744.

The previous prime is 213081149. The next prime is 213081163. The reversal of 213081160 is 61180312.

It can be written as a sum of positive squares in 4 ways, for example, as 166048996 + 47032164 = 12886^2 + 6858^2 .

It is not an unprimeable number, because it can be changed into a prime (213081163) 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, 33567 + ... + 39406.

Almost surely, 2^213081160 is an apocalyptic number.

213081160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213081160 is an abundant number, since it is smaller than the sum of its proper divisors (272925680).

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

213081160 is a wasteful number, since it uses less digits than its factorization.

213081160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73057 (or 73053 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 213081160 is about 14597.2997502963. The cubic root of 213081160 is about 597.2851044691.

The spelling of 213081160 in words is "two hundred thirteen million, eighty-one thousand, one hundred sixty".