82152011 has 2 divisors, whose sum is σ = 82152012. Its totient is φ = 82152010.

The previous prime is 82152001. The next prime is 82152019. The reversal of 82152011 is 11025128.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82152011 is a prime.

It is a super-2 number, since 2×82152011² = 13497905822688242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82152019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41076005 + 41076006.

It is an arithmetic number, because the mean of its divisors is an integer number (41076006).

Almost surely, 2^82152011 is an apocalyptic number.

82152011 is a deficient number, since it is larger than the sum of its proper divisors (1).

82152011 is an equidigital number, since it uses as much as digits as its factorization.

82152011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 82152011 is about 9063.7746551864. The cubic root of 82152011 is about 434.7164417914.

Adding to 82152011 its reverse (11025128), we get a palindrome (93177139).

The spelling of 82152011 in words is "eighty-two million, one hundred fifty-two thousand, eleven".