82102742 has 8 divisors (see below), whose sum is σ = 124350096. Its totient is φ = 40652712.

The previous prime is 82102739. The next prime is 82102753. The reversal of 82102742 is 24720128.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199073 + ... + 199484.

It is an arithmetic number, because the mean of its divisors is an integer number (15543762).

Almost surely, 2^82102742 is an apocalyptic number.

82102742 is a deficient number, since it is larger than the sum of its proper divisors (42247354).

82102742 is a wasteful number, since it uses less digits than its factorization.

82102742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398662.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 82102742 is about 9061.0563401846. The cubic root of 82102742 is about 434.6295202938.

The spelling of 82102742 in words is "eighty-two million, one hundred two thousand, seven hundred forty-two".