82156030 has 16 divisors (see below), whose sum is σ = 161324784. Its totient is φ = 29874880.

The previous prime is 82156027. The next prime is 82156031. The reversal of 82156030 is 3065128.

It is a happy number.

It is a super-2 number, since 2×82156030² = 13499226530721800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82155986 and 82156004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82156031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373327 + ... + 373546.

It is an arithmetic number, because the mean of its divisors is an integer number (10082799).

Almost surely, 2^82156030 is an apocalyptic number.

82156030 is a deficient number, since it is larger than the sum of its proper divisors (79168754).

82156030 is a wasteful number, since it uses less digits than its factorization.

82156030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746891.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 82156030 is about 9063.9963592226. The cubic root of 82156030 is about 434.7235306700.

The spelling of 82156030 in words is "eighty-two million, one hundred fifty-six thousand, thirty".