82011142 has 8 divisors (see below), whose sum is σ = 123103800. Its totient is φ = 40976544.

The previous prime is 82011079. The next prime is 82011143. The reversal of 82011142 is 24111028.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82011143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10792 + ... + 16747.

It is an arithmetic number, because the mean of its divisors is an integer number (15387975).

Almost surely, 2^82011142 is an apocalyptic number.

82011142 is a deficient number, since it is larger than the sum of its proper divisors (41092658).

82011142 is a wasteful number, since it uses less digits than its factorization.

82011142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29030.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 82011142 is about 9056.0003312721. Note that the first 3 decimals coincide. The cubic root of 82011142 is about 434.4678250079.

The spelling of 82011142 in words is "eighty-two million, eleven thousand, one hundred forty-two".