102428255 has 8 divisors (see below), whose sum is σ = 122975712. Its totient is φ = 81901408.

The previous prime is 102428251. The next prime is 102428303. The reversal of 102428255 is 552824201.

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 102428255 - 2² = 102428251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102428251) 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, 9662 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (15371964).

Almost surely, 2^102428255 is an apocalyptic number.

102428255 is a deficient number, since it is larger than the sum of its proper divisors (20547457).

102428255 is an equidigital number, since it uses as much as digits as its factorization.

102428255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 102428255 is about 10120.6845124231. The cubic root of 102428255 is about 467.8858644284.

The spelling of 102428255 in words is "one hundred two million, four hundred twenty-eight thousand, two hundred fifty-five".