82739142 has 24 divisors (see below), whose sum is σ = 187063344. Its totient is φ = 26380464.

The previous prime is 82739113. The next prime is 82739147. The reversal of 82739142 is 24193728.

It is a junction number, because it is equal to n+sod(n) for n = 82739097 and 82739106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82739147) 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, 99513 + ... + 100340.

It is an arithmetic number, because the mean of its divisors is an integer number (7794306).

Almost surely, 2^82739142 is an apocalyptic number.

82739142 is an abundant number, since it is smaller than the sum of its proper divisors (104324202).

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

82739142 is a wasteful number, since it uses less digits than its factorization.

82739142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199884 (or 199881 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 82739142 is about 9096.1058700963. The cubic root of 82739142 is about 435.7496072311.

The spelling of 82739142 in words is "eighty-two million, seven hundred thirty-nine thousand, one hundred forty-two".