100999485 has 48 divisors (see below), whose sum is σ = 179699520. Its totient is φ = 52462080.

The previous prime is 100999477. The next prime is 100999487. The reversal of 100999485 is 584999001.

It is not a de Polignac number, because 100999485 - 2³ = 100999477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 100999485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100999487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 418965 + ... + 419205.

It is an arithmetic number, because the mean of its divisors is an integer number (3743740).

Almost surely, 2^100999485 is an apocalyptic number.

100999485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100999485 is a deficient number, since it is larger than the sum of its proper divisors (78700035).

100999485 is a wasteful number, since it uses less digits than its factorization.

100999485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 100999485 is about 10049.8499988806. The cubic root of 100999485 is about 465.7001592411.

The spelling of 100999485 in words is "one hundred million, nine hundred ninety-nine thousand, four hundred eighty-five".