102255320 has 32 divisors (see below), whose sum is σ = 231897600. Its totient is φ = 40578048.

The previous prime is 102255313. The next prime is 102255331. The reversal of 102255320 is 23552201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102255292 and 102255301.

It is a congruent number.

It is an unprimeable number.

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, 4985 + ... + 15144.

It is an arithmetic number, because the mean of its divisors is an integer number (7246800).

Almost surely, 2^102255320 is an apocalyptic number.

102255320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102255320 is an abundant number, since it is smaller than the sum of its proper divisors (129642280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102255320 is a wasteful number, since it uses less digits than its factorization.

102255320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20267 (or 20263 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 102255320 is about 10112.1372617266. The cubic root of 102255320 is about 467.6223973419.

The spelling of 102255320 in words is "one hundred two million, two hundred fifty-five thousand, three hundred twenty".