100545404501 has 4 divisors (see below), whose sum is σ = 100546077132. Its totient is φ = 100544731872.

The previous prime is 100545404437. The next prime is 100545404507. The reversal of 100545404501 is 105404545001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21611940100 + 78933464401 = 147010^2 + 280951^2 .

It is a cyclic number.

It is not a de Polignac number, because 100545404501 - 2⁶ = 100545404437 is a prime.

It is a super-2 number, since 2×100545404501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100545404507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35 + ... + 448431.

It is an arithmetic number, because the mean of its divisors is an integer number (25136519283).

Almost surely, 2^100545404501 is an apocalyptic number.

It is an amenable number.

100545404501 is a deficient number, since it is larger than the sum of its proper divisors (672631).

100545404501 is an equidigital number, since it uses as much as digits as its factorization.

100545404501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672630.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 100545404501 its reverse (105404545001), we get a palindrome (205949949502).

The spelling of 100545404501 in words is "one hundred billion, five hundred forty-five million, four hundred four thousand, five hundred one".