102261 has 8 divisors (see below), whose sum is σ = 138240. Its totient is φ = 67232.

The previous prime is 102259. The next prime is 102293. The reversal of 102261 is 162201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102261 - 2¹ = 102259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 458.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2¹⁰²²⁶¹ is an apocalyptic number.

It is an amenable number.

102261 is a deficient number, since it is larger than the sum of its proper divisors (35979).

102261 is an equidigital number, since it uses as much as digits as its factorization.

102261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102261 is about 319.7827387462. The cubic root of 102261 is about 46.7631055558.

Adding to 102261 its reverse (162201), we get a palindrome (264462).

It can be divided in two parts, 102 and 261, that added together give a palindrome (363).

The spelling of 102261 in words is "one hundred two thousand, two hundred sixty-one".