100113553 has 2 divisors, whose sum is σ = 100113554. Its totient is φ = 100113552.

The previous prime is 100113551. The next prime is 100113577. The reversal of 100113553 is 355311001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95902849 + 4210704 = 9793^2 + 2052^2 .

It is a cyclic number.

It is not a de Polignac number, because 100113553 - 2¹ = 100113551 is a prime.

Together with 100113551, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 100113553.

It is not a weakly prime, because it can be changed into another prime (100113551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50056776 + 50056777.

It is an arithmetic number, because the mean of its divisors is an integer number (50056777).

Almost surely, 2^100113553 is an apocalyptic number.

It is an amenable number.

100113553 is a deficient number, since it is larger than the sum of its proper divisors (1).

100113553 is an equidigital number, since it uses as much as digits as its factorization.

100113553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 100113553 is about 10005.6760391290. The cubic root of 100113553 is about 464.3345056822.

Adding to 100113553 its reverse (355311001), we get a palindrome (455424554).

The spelling of 100113553 in words is "one hundred million, one hundred thirteen thousand, five hundred fifty-three".