102885385 has 8 divisors (see below), whose sum is σ = 123539976. Its totient is φ = 82256640.

The previous prime is 102885383. The next prime is 102885449. The reversal of 102885385 is 583588201.

It can be written as a sum of positive squares in 4 ways, for example, as 5053504 + 97831881 = 2248^2 + 9891^2 .

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

It is not a de Polignac number, because 102885385 - 2¹ = 102885383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102885383) 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, 3777 + ... + 14833.

It is an arithmetic number, because the mean of its divisors is an integer number (15442497).

Almost surely, 2^102885385 is an apocalyptic number.

It is an amenable number.

102885385 is a deficient number, since it is larger than the sum of its proper divisors (20654591).

102885385 is a wasteful number, since it uses less digits than its factorization.

102885385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 102885385 is about 10143.2433175982. The cubic root of 102885385 is about 468.5808786045.

The spelling of 102885385 in words is "one hundred two million, eight hundred eighty-five thousand, three hundred eighty-five".