102145030 has 16 divisors (see below), whose sum is σ = 198004464. Its totient is φ = 37715040.

The previous prime is 102145009. The next prime is 102145079. The reversal of 102145030 is 30541201.

It is a junction number, because it is equal to n+sod(n) for n = 102144995 and 102145013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392736 + ... + 392995.

It is an arithmetic number, because the mean of its divisors is an integer number (12375279).

Almost surely, 2^102145030 is an apocalyptic number.

102145030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102145030 is a deficient number, since it is larger than the sum of its proper divisors (95859434).

102145030 is a wasteful number, since it uses less digits than its factorization.

102145030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785751.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102145030 is about 10106.6824428197. The cubic root of 102145030 is about 467.4542149677.

Adding to 102145030 its reverse (30541201), we get a palindrome (132686231).

The spelling of 102145030 in words is "one hundred two million, one hundred forty-five thousand, thirty".