102275380 has 12 divisors (see below), whose sum is σ = 214778340. Its totient is φ = 40910144.

The previous prime is 102275353. The next prime is 102275387. The reversal of 102275380 is 83572201.

It can be written as a sum of positive squares in 2 ways, for example, as 47692836 + 54582544 = 6906^2 + 7388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102275387) 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 3 ways as a sum of consecutive naturals, for example, 2556865 + ... + 2556904.

It is an arithmetic number, because the mean of its divisors is an integer number (17898195).

Almost surely, 2^102275380 is an apocalyptic number.

102275380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102275380 is an abundant number, since it is smaller than the sum of its proper divisors (112502960).

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

102275380 is a wasteful number, since it uses less digits than its factorization.

102275380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113778 (or 5113776 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 102275380 is about 10113.1290904448. The cubic root of 102275380 is about 467.6529740459.

The spelling of 102275380 in words is "one hundred two million, two hundred seventy-five thousand, three hundred eighty".