102234581 has 2 divisors, whose sum is σ = 102234582. Its totient is φ = 102234580.

The previous prime is 102234557. The next prime is 102234631. The reversal of 102234581 is 185432201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64657681 + 37576900 = 8041^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 102234581 - 2¹⁴ = 102218197 is a prime.

It is a super-2 number, since 2×102234581² = 20903819104491122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102234581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102234281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51117290 + 51117291.

It is an arithmetic number, because the mean of its divisors is an integer number (51117291).

Almost surely, 2^102234581 is an apocalyptic number.

It is an amenable number.

102234581 is a deficient number, since it is larger than the sum of its proper divisors (1).

102234581 is an equidigital number, since it uses as much as digits as its factorization.

102234581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 102234581 is about 10111.1117588522. Note that the first 3 decimals coincide. The cubic root of 102234581 is about 467.5907814592.

Adding to 102234581 its reverse (185432201), we get a palindrome (287666782).

The spelling of 102234581 in words is "one hundred two million, two hundred thirty-four thousand, five hundred eighty-one".