82042951 has 2 divisors, whose sum is σ = 82042952. Its totient is φ = 82042950.

The previous prime is 82042921. The next prime is 82042963. The reversal of 82042951 is 15924028.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82042951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82042921) 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, 41021475 + 41021476.

It is an arithmetic number, because the mean of its divisors is an integer number (41021476).

Almost surely, 2^82042951 is an apocalyptic number.

82042951 is a deficient number, since it is larger than the sum of its proper divisors (1).

82042951 is an equidigital number, since it uses as much as digits as its factorization.

82042951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 82042951 is about 9057.7563999039. The cubic root of 82042951 is about 434.5239889240.

Adding to 82042951 its reverse (15924028), we get a palindrome (97966979).

The spelling of 82042951 in words is "eighty-two million, forty-two thousand, nine hundred fifty-one".