102685435 has 4 divisors (see below), whose sum is σ = 123222528. Its totient is φ = 82148344.

The previous prime is 102685421. The next prime is 102685477. The reversal of 102685435 is 534586201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102685435 - 2⁷ = 102685307 is a prime.

It is a super-2 number, since 2×102685435² = 21088597122278450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102685435.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10268539 + ... + 10268548.

It is an arithmetic number, because the mean of its divisors is an integer number (30805632).

Almost surely, 2^102685435 is an apocalyptic number.

102685435 is a deficient number, since it is larger than the sum of its proper divisors (20537093).

102685435 is an equidigital number, since it uses as much as digits as its factorization.

102685435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20537092.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 102685435 is about 10133.3822093120. The cubic root of 102685435 is about 468.2771311959.

The spelling of 102685435 in words is "one hundred two million, six hundred eighty-five thousand, four hundred thirty-five".