102115005 has 64 divisors (see below), whose sum is σ = 181232640. Its totient is φ = 48881664.

The previous prime is 102114979. The next prime is 102115007. The reversal of 102115005 is 500511201.

It is not a de Polignac number, because 102115005 - 2⁷ = 102114877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102115007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 745297 + ... + 745433.

It is an arithmetic number, because the mean of its divisors is an integer number (2831760).

Almost surely, 2^102115005 is an apocalyptic number.

102115005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102115005 is a deficient number, since it is larger than the sum of its proper divisors (79117635).

102115005 is a wasteful number, since it uses less digits than its factorization.

102115005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 102115005 is about 10105.1969302928. The cubic root of 102115005 is about 467.4084085679.

Adding to 102115005 its reverse (500511201), we get a palindrome (602626206).

The spelling of 102115005 in words is "one hundred two million, one hundred fifteen thousand, five".