102105030 has 32 divisors (see below), whose sum is σ = 249679584. Its totient is φ = 26713856.

The previous prime is 102105019. The next prime is 102105037. The reversal of 102105030 is 30501201.

It is a junction number, because it is equal to n+sod(n) for n = 102104997 and 102105015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102105037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30519 + ... + 33698.

It is an arithmetic number, because the mean of its divisors is an integer number (7802487).

Almost surely, 2^102105030 is an apocalyptic number.

102105030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102105030 is an abundant number, since it is smaller than the sum of its proper divisors (147574554).

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

102105030 is a wasteful number, since it uses less digits than its factorization.

102105030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64280.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 102105030 is about 10104.7033603169. The cubic root of 102105030 is about 467.3931886346.

Adding to 102105030 its reverse (30501201), we get a palindrome (132606231).

The spelling of 102105030 in words is "one hundred two million, one hundred five thousand, thirty".