102115240605 has 24 divisors (see below), whose sum is σ = 202285429632. Its totient is φ = 46681252704.

The previous prime is 102115240537. The next prime is 102115240607. The reversal of 102115240605 is 506042511201.

102115240605 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 1 + 52 + 4 + 0 + 605 = 666.

It is not a de Polignac number, because 102115240605 - 2⁸ = 102115240349 is a prime.

It is a super-3 number, since 3×102115240605³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102115240607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162087369 + ... + 162087998.

It is an arithmetic number, because the mean of its divisors is an integer number (8428559568).

Almost surely, 2^102115240605 is an apocalyptic number.

102115240605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102115240605 is a deficient number, since it is larger than the sum of its proper divisors (100170189027).

102115240605 is a wasteful number, since it uses less digits than its factorization.

102115240605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324175385 (or 324175382 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 102115240605 its reverse (506042511201), we get a palindrome (608157751806).

The spelling of 102115240605 in words is "one hundred two billion, one hundred fifteen million, two hundred forty thousand, six hundred five".