611142112 has 144 divisors (see below), whose sum is σ = 1503221328. Its totient is φ = 242995200.

The previous prime is 611142109. The next prime is 611142121. The reversal of 611142112 is 211241116.

It is a self number, because there is not a number n which added to its sum of digits gives 611142112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2692143 + ... + 2692369.

It is an arithmetic number, because the mean of its divisors is an integer number (10439037).

Almost surely, 2^611142112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611142112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751610664).

611142112 is an abundant number, since it is smaller than the sum of its proper divisors (892079216).

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

611142112 is a wasteful number, since it uses less digits than its factorization.

611142112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 354 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 611142112 is about 24721.2886395511. The cubic root of 611142112 is about 848.6215776222.

Adding to 611142112 its reverse (211241116), we get a palindrome (822383228).

The spelling of 611142112 in words is "six hundred eleven million, one hundred forty-two thousand, one hundred twelve".