10100505 has 32 divisors (see below), whose sum is σ = 16744320. Its totient is φ = 5196800.

The previous prime is 10100501. The next prime is 10100507. The reversal of 10100505 is 50500101.

10100505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10100505 - 2² = 10100501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10100501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89329 + ... + 89441.

It is an arithmetic number, because the mean of its divisors is an integer number (523260).

Almost surely, 2^10100505 is an apocalyptic number.

10100505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10100505 is a deficient number, since it is larger than the sum of its proper divisors (6643815).

10100505 is a wasteful number, since it uses less digits than its factorization.

10100505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281.

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 10100505 is about 3178.1291666639. The cubic root of 10100505 is about 216.1628358884.

Adding to 10100505 its reverse (50500101), we get a palindrome (60600606).

The spelling of 10100505 in words is "ten million, one hundred thousand, five hundred five".