102291 has 8 divisors (see below), whose sum is σ = 155904. Its totient is φ = 58440.

The previous prime is 102259. The next prime is 102293. The reversal of 102291 is 192201.

It is a happy number.

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

It is not a de Polignac number, because 102291 - 2⁵ = 102259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (19488).

2¹⁰²²⁹¹ is an apocalyptic number.

102291 is a deficient number, since it is larger than the sum of its proper divisors (53613).

102291 is an equidigital number, since it uses as much as digits as its factorization.

102291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 102291 is about 319.8296421534. The cubic root of 102291 is about 46.7676780256.

Adding to 102291 its reverse (192201), we get a palindrome (294492).

It can be divided in two parts, 102 and 291, that added together give a palindrome (393).

The spelling of 102291 in words is "one hundred two thousand, two hundred ninety-one".