82121467 has 2 divisors, whose sum is σ = 82121468. Its totient is φ = 82121466.

The previous prime is 82121453. The next prime is 82121471. The reversal of 82121467 is 76412128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82121467 - 2¹⁹ = 81597179 is a prime.

It is equal to p_4786105 and since 82121467 and 4786105 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (82121867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41060733 + 41060734.

It is an arithmetic number, because the mean of its divisors is an integer number (41060734).

Almost surely, 2^82121467 is an apocalyptic number.

82121467 is a deficient number, since it is larger than the sum of its proper divisors (1).

82121467 is an equidigital number, since it uses as much as digits as its factorization.

82121467 is an odious number, because the sum of its binary digits is odd.

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

The square root of 82121467 is about 9062.0895493258. The cubic root of 82121467 is about 434.6625594630.

The spelling of 82121467 in words is "eighty-two million, one hundred twenty-one thousand, four hundred sixty-seven".