100105553 has 8 divisors (see below), whose sum is σ = 101521728. Its totient is φ = 98694544.

The previous prime is 100105549. The next prime is 100105567. The reversal of 100105553 is 355501001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100105553 - 2² = 100105549 is a prime.

It is a super-2 number, since 2×100105553² = 20042243482871618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100105543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53276 + ... + 55122.

It is an arithmetic number, because the mean of its divisors is an integer number (12690216).

Almost surely, 2^100105553 is an apocalyptic number.

It is an amenable number.

100105553 is a deficient number, since it is larger than the sum of its proper divisors (1416175).

100105553 is an equidigital number, since it uses as much as digits as its factorization.

100105553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 100105553 is about 10005.2762580550. The cubic root of 100105553 is about 464.3221371437.

Adding to 100105553 its reverse (355501001), we get a palindrome (455606554).

The spelling of 100105553 in words is "one hundred million, one hundred five thousand, five hundred fifty-three".