105011142 has 16 divisors (see below), whose sum is σ = 222376752. Its totient is φ = 32944640.

The previous prime is 105011141. The next prime is 105011147. The reversal of 105011142 is 241110501.

It is a happy number.

It is a super-2 number, since 2×105011142² = 22054679888288328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105011141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 514659 + ... + 514862.

It is an arithmetic number, because the mean of its divisors is an integer number (13898547).

Almost surely, 2^105011142 is an apocalyptic number.

105011142 is an abundant number, since it is smaller than the sum of its proper divisors (117365610).

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

105011142 is a wasteful number, since it uses less digits than its factorization.

105011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029543.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 105011142 is about 10247.4944254681. The cubic root of 105011142 is about 471.7860845990.

Adding to 105011142 its reverse (241110501), we get a palindrome (346121643).

The spelling of 105011142 in words is "one hundred five million, eleven thousand, one hundred forty-two".