100405053 has 24 divisors (see below), whose sum is σ = 166011456. Its totient is φ = 57283200.

The previous prime is 100405049. The next prime is 100405069. The reversal of 100405053 is 350504001.

It is not a de Polignac number, because 100405053 - 2² = 100405049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100405033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73093 + ... + 74453.

It is an arithmetic number, because the mean of its divisors is an integer number (6917144).

Almost surely, 2^100405053 is an apocalyptic number.

It is an amenable number.

100405053 is a deficient number, since it is larger than the sum of its proper divisors (65606403).

100405053 is a wasteful number, since it uses less digits than its factorization.

100405053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 100405053 is about 10020.2321829387. The cubic root of 100405053 is about 464.7847356032.

Adding to 100405053 its reverse (350504001), we get a palindrome (450909054).

The spelling of 100405053 in words is "one hundred million, four hundred five thousand, fifty-three".