211035140 has 48 divisors (see below), whose sum is σ = 450965424. Its totient is φ = 82944000.

The previous prime is 211035133. The next prime is 211035163. The reversal of 211035140 is 41530112.

It can be written as a sum of positive squares in 8 ways, for example, as 12845056 + 198190084 = 3584^2 + 14078^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350840 + ... + 351440.

It is an arithmetic number, because the mean of its divisors is an integer number (9395113).

Almost surely, 2^211035140 is an apocalyptic number.

211035140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211035140 is an abundant number, since it is smaller than the sum of its proper divisors (239930284).

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

211035140 is a wasteful number, since it uses less digits than its factorization.

211035140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 211035140 is about 14527.0485646603. The cubic root of 211035140 is about 595.3672285207.

Adding to 211035140 its reverse (41530112), we get a palindrome (252565252).

The spelling of 211035140 in words is "two hundred eleven million, thirty-five thousand, one hundred forty".