102255481 has 2 divisors, whose sum is σ = 102255482. Its totient is φ = 102255480.

The previous prime is 102255469. The next prime is 102255521. The reversal of 102255481 is 184552201.

102255481 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 45765225 = 7516^2 + 6765^2 .

It is a cyclic number.

It is not a de Polignac number, because 102255481 - 2¹⁷ = 102124409 is a prime.

It is a super-2 number, since 2×102255481² = 20912366789082722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102252481) 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, 51127740 + 51127741.

It is an arithmetic number, because the mean of its divisors is an integer number (51127741).

Almost surely, 2^102255481 is an apocalyptic number.

It is an amenable number.

102255481 is a deficient number, since it is larger than the sum of its proper divisors (1).

102255481 is an equidigital number, since it uses as much as digits as its factorization.

102255481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 102255481 is about 10112.1452224540. The cubic root of 102255481 is about 467.6226427641.

The spelling of 102255481 in words is "one hundred two million, two hundred fifty-five thousand, four hundred eighty-one".