100009553 has 4 divisors (see below), whose sum is σ = 114296640. Its totient is φ = 85722468.

The previous prime is 100009549. The next prime is 100009573. The reversal of 100009553 is 355900001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355900001 = 19 ⋅18731579.

It is a cyclic number.

It is not a de Polignac number, because 100009553 - 2² = 100009549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100009573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7143533 + ... + 7143546.

It is an arithmetic number, because the mean of its divisors is an integer number (28574160).

Almost surely, 2^100009553 is an apocalyptic number.

It is an amenable number.

100009553 is a deficient number, since it is larger than the sum of its proper divisors (14287087).

100009553 is an equidigital number, since it uses as much as digits as its factorization.

100009553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287086.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 100009553 is about 10000.4776385931. The cubic root of 100009553 is about 464.1736632567.

Adding to 100009553 its reverse (355900001), we get a palindrome (455909554).

The spelling of 100009553 in words is "one hundred million, nine thousand, five hundred fifty-three".