102055791 has 8 divisors (see below), whose sum is σ = 136235520. Its totient is φ = 67956632.

The previous prime is 102055771. The next prime is 102055801. The reversal of 102055791 is 197550201.

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 102055791 - 2¹⁸ = 101793647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102055711) 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 in 7 ways as a sum of consecutive naturals, for example, 17121 + ... + 22298.

It is an arithmetic number, because the mean of its divisors is an integer number (17029440).

Almost surely, 2^102055791 is an apocalyptic number.

102055791 is a deficient number, since it is larger than the sum of its proper divisors (34179729).

102055791 is an equidigital number, since it uses as much as digits as its factorization.

102055791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40285.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 102055791 is about 10102.2666268516. The cubic root of 102055791 is about 467.3180448550.

The spelling of 102055791 in words is "one hundred two million, fifty-five thousand, seven hundred ninety-one".