82981351 has 2 divisors, whose sum is σ = 82981352. Its totient is φ = 82981350.

The previous prime is 82981333. The next prime is 82981387. The reversal of 82981351 is 15318928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82981351 - 2⁹ = 82980839 is a prime.

It is a super-2 number, since 2×82981351² = 13771809227570402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82981351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82981051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41490675 + 41490676.

It is an arithmetic number, because the mean of its divisors is an integer number (41490676).

Almost surely, 2^82981351 is an apocalyptic number.

82981351 is a deficient number, since it is larger than the sum of its proper divisors (1).

82981351 is an equidigital number, since it uses as much as digits as its factorization.

82981351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 37.

The square root of 82981351 is about 9109.4100248040. The cubic root of 82981351 is about 436.1743947160.

The spelling of 82981351 in words is "eighty-two million, nine hundred eighty-one thousand, three hundred fifty-one".