102855530 has 8 divisors (see below), whose sum is σ = 185139972. Its totient is φ = 41142208.

The previous prime is 102855497. The next prime is 102855539. The reversal of 102855530 is 35558201.

It can be written as a sum of positive squares in 2 ways, for example, as 87590881 + 15264649 = 9359^2 + 3907^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102855493 and 102855502.

It is not an unprimeable number, because it can be changed into a prime (102855539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5142767 + ... + 5142786.

Almost surely, 2^102855530 is an apocalyptic number.

102855530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102855530 is a deficient number, since it is larger than the sum of its proper divisors (82284442).

102855530 is a wasteful number, since it uses less digits than its factorization.

102855530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10285560.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 102855530 is about 10141.7715415010. The cubic root of 102855530 is about 468.5355503799.

The spelling of 102855530 in words is "one hundred two million, eight hundred fifty-five thousand, five hundred thirty".