82142577 has 12 divisors (see below), whose sum is σ = 129436944. Its totient is φ = 49783320.

The previous prime is 82142569. The next prime is 82142579. The reversal of 82142577 is 77524128.

82142577 is a `hidden beast` number, since 82 + 1 + 4 + 2 + 577 = 666.

It is not a de Polignac number, because 82142577 - 2³ = 82142569 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82142579) 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, 414763 + ... + 414960.

It is an arithmetic number, because the mean of its divisors is an integer number (10786412).

Almost surely, 2^82142577 is an apocalyptic number.

It is an amenable number.

82142577 is a deficient number, since it is larger than the sum of its proper divisors (47294367).

82142577 is a wasteful number, since it uses less digits than its factorization.

82142577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829740 (or 829737 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 82142577 is about 9063.2542168914. The cubic root of 82142577 is about 434.6998008033.

The spelling of 82142577 in words is "eighty-two million, one hundred forty-two thousand, five hundred seventy-seven".