102685288 has 16 divisors (see below), whose sum is σ = 199174500. Its totient is φ = 49572096.

The previous prime is 102685283. The next prime is 102685301. The reversal of 102685288 is 882586201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 102373924 + 311364 = 10118^2 + 558^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102685288.

It is not an unprimeable number, because it can be changed into a prime (102685283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221073 + ... + 221536.

Almost surely, 2^102685288 is an apocalyptic number.

It is an amenable number.

102685288 is a deficient number, since it is larger than the sum of its proper divisors (96489212).

102685288 is a wasteful number, since it uses less digits than its factorization.

102685288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442644 (or 442640 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 102685288 is about 10133.3749560549. The cubic root of 102685288 is about 468.2769077407.

The spelling of 102685288 in words is "one hundred two million, six hundred eighty-five thousand, two hundred eighty-eight".