102000015 has 48 divisors (see below), whose sum is σ = 192209472. Its totient is φ = 49738752.

The previous prime is 101999969. The next prime is 102000023. The reversal of 102000015 is 510000201.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-102000015 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101999970 and 102000006.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 65334 + ... + 66876.

It is an arithmetic number, because the mean of its divisors is an integer number (4004364).

Almost surely, 2^102000015 is an apocalyptic number.

102000015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102000015 is a deficient number, since it is larger than the sum of its proper divisors (90209457).

102000015 is a wasteful number, since it uses less digits than its factorization.

102000015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 102000015 is about 10099.5056809727. The cubic root of 102000015 is about 467.2328957391.

Adding to 102000015 its reverse (510000201), we get a palindrome (612000216).

The spelling of 102000015 in words is "one hundred two million, fifteen", and thus it is an aban number.