100489145 has 8 divisors (see below), whose sum is σ = 120654600. Its totient is φ = 80346240.

The previous prime is 100489121. The next prime is 100489153. The reversal of 100489145 is 541984001.

It can be written as a sum of positive squares in 4 ways, for example, as 31449664 + 69039481 = 5608^2 + 8309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100489145 - 2⁸ = 100488889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6581 + ... + 15629.

It is an arithmetic number, because the mean of its divisors is an integer number (15081825).

Almost surely, 2^100489145 is an apocalyptic number.

It is an amenable number.

100489145 is a deficient number, since it is larger than the sum of its proper divisors (20165455).

100489145 is an equidigital number, since it uses as much as digits as its factorization.

100489145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 100489145 is about 10024.4274150697. The cubic root of 100489145 is about 464.9144560718.

The spelling of 100489145 in words is "one hundred million, four hundred eighty-nine thousand, one hundred forty-five".