211061142 has 24 divisors (see below), whose sum is σ = 457616016. Its totient is φ = 70304976.

The previous prime is 211061141. The next prime is 211061143. The reversal of 211061142 is 241160112.

211061142 is a `hidden beast` number, since 2 + 1 + 10 + 611 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (211061141) and next prime (211061143).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211061141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30663 + ... + 36909.

It is an arithmetic number, because the mean of its divisors is an integer number (19067334).

Almost surely, 2^211061142 is an apocalyptic number.

211061142 is an abundant number, since it is smaller than the sum of its proper divisors (246554874).

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

211061142 is a wasteful number, since it uses less digits than its factorization.

211061142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132 (or 8129 counting only the distinct ones).

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

The square root of 211061142 is about 14527.9434883262. The cubic root of 211061142 is about 595.3916795875.

The spelling of 211061142 in words is "two hundred eleven million, sixty-one thousand, one hundred forty-two".