211142160 has 160 divisors (see below), whose sum is σ = 732096000. Its totient is φ = 55931904.

The previous prime is 211142153. The next prime is 211142161. The reversal of 211142160 is 61241112.

It is a super-3 number, since 3×211142160³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211142161) 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 31 ways as a sum of consecutive naturals, for example, 516036 + ... + 516444.

It is an arithmetic number, because the mean of its divisors is an integer number (4575600).

Almost surely, 2^211142160 is an apocalyptic number.

211142160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211142160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366048000).

211142160 is an abundant number, since it is smaller than the sum of its proper divisors (520953840).

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

211142160 is a wasteful number, since it uses less digits than its factorization.

211142160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 211142160 is about 14530.7315713972. The cubic root of 211142160 is about 595.4678522577.

Adding to 211142160 its reverse (61241112), we get a palindrome (272383272).

The spelling of 211142160 in words is "two hundred eleven million, one hundred forty-two thousand, one hundred sixty".