100070505 has 32 divisors (see below), whose sum is σ = 178398720. Its totient is φ = 53222400.

The previous prime is 100070501. The next prime is 100070521. The reversal of 100070505 is 505070001.

It is a happy number.

It is not a de Polignac number, because 100070505 - 2² = 100070501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100070501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61705 + ... + 63305.

It is an arithmetic number, because the mean of its divisors is an integer number (5574960).

Almost surely, 2^100070505 is an apocalyptic number.

100070505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100070505 is a deficient number, since it is larger than the sum of its proper divisors (78328215).

100070505 is a wasteful number, since it uses less digits than its factorization.

100070505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078 (or 2072 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The square root of 100070505 is about 10003.5246288496. The cubic root of 100070505 is about 464.2679428081.

The spelling of 100070505 in words is "one hundred million, seventy thousand, five hundred five".