211000142 has 16 divisors (see below), whose sum is σ = 319839840. Its totient is φ = 104392992.

The previous prime is 211000121. The next prime is 211000151. The reversal of 211000142 is 241000112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77903 + ... + 80565.

It is an arithmetic number, because the mean of its divisors is an integer number (19989990).

Almost surely, 2^211000142 is an apocalyptic number.

211000142 is a deficient number, since it is larger than the sum of its proper divisors (108839698).

211000142 is a wasteful number, since it uses less digits than its factorization.

211000142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211000142 is about 14525.8439341747. The cubic root of 211000142 is about 595.3343148644.

Adding to 211000142 its reverse (241000112), we get a palindrome (452000254).

The spelling of 211000142 in words is "two hundred eleven million, one hundred forty-two", and thus it is an aban number.