102015075 has 12 divisors (see below), whose sum is σ = 168665048. Its totient is φ = 54408000.

The previous prime is 102015073. The next prime is 102015131. The reversal of 102015075 is 570510201.

It is not a de Polignac number, because 102015075 - 2¹ = 102015073 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102015073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 680026 + ... + 680175.

Almost surely, 2^102015075 is an apocalyptic number.

102015075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102015075 is a deficient number, since it is larger than the sum of its proper divisors (66649973).

102015075 is a wasteful number, since it uses less digits than its factorization.

102015075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360214 (or 1360209 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 102015075 is about 10100.2512344991. The cubic root of 102015075 is about 467.2558897917.

Adding to 102015075 its reverse (570510201), we get a palindrome (672525276).

The spelling of 102015075 in words is "one hundred two million, fifteen thousand, seventy-five".