211532141 has 2 divisors, whose sum is σ = 211532142. Its totient is φ = 211532140.

The previous prime is 211532137. The next prime is 211532147. The reversal of 211532141 is 141235112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210975625 + 556516 = 14525^2 + 746^2 .

It is a cyclic number.

It is not a de Polignac number, because 211532141 - 2² = 211532137 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211532147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105766070 + 105766071.

It is an arithmetic number, because the mean of its divisors is an integer number (105766071).

Almost surely, 2^211532141 is an apocalyptic number.

It is an amenable number.

211532141 is a deficient number, since it is larger than the sum of its proper divisors (1).

211532141 is an equidigital number, since it uses as much as digits as its factorization.

211532141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 20.

The square root of 211532141 is about 14544.1445606127. The cubic root of 211532141 is about 595.8342378304.

Adding to 211532141 its reverse (141235112), we get a palindrome (352767253).

The spelling of 211532141 in words is "two hundred eleven million, five hundred thirty-two thousand, one hundred forty-one".