211142246 has 16 divisors (see below), whose sum is σ = 363200544. Its totient is φ = 90178944.

The previous prime is 211142161. The next prime is 211142249. The reversal of 211142246 is 642241112.

211142246 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211142249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21635 + ... + 29838.

It is an arithmetic number, because the mean of its divisors is an integer number (22700034).

Almost surely, 2^211142246 is an apocalyptic number.

211142246 is a deficient number, since it is larger than the sum of its proper divisors (152058298).

211142246 is a wasteful number, since it uses less digits than its factorization.

211142246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51775.

The product of its digits is 768, while the sum is 23.

The square root of 211142246 is about 14530.7345306423. The cubic root of 211142246 is about 595.4679331040.

Adding to 211142246 its reverse (642241112), we get a palindrome (853383358).

The spelling of 211142246 in words is "two hundred eleven million, one hundred forty-two thousand, two hundred forty-six".