82237081 has 2 divisors, whose sum is σ = 82237082. Its totient is φ = 82237080.

The previous prime is 82237061. The next prime is 82237087. The reversal of 82237081 is 18073228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 7241481 = 8660^2 + 2691^2 .

It is a cyclic number.

It is not a de Polignac number, because 82237081 - 2¹⁷ = 82106009 is a prime.

It is a super-2 number, since 2×82237081² = 13525874982801122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82237087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41118540 + 41118541.

It is an arithmetic number, because the mean of its divisors is an integer number (41118541).

Almost surely, 2^82237081 is an apocalyptic number.

It is an amenable number.

82237081 is a deficient number, since it is larger than the sum of its proper divisors (1).

82237081 is an equidigital number, since it uses as much as digits as its factorization.

82237081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 82237081 is about 9068.4662981124. The cubic root of 82237081 is about 434.8664424614.

The spelling of 82237081 in words is "eighty-two million, two hundred thirty-seven thousand, eighty-one".