100045501 has 4 divisors (see below), whose sum is σ = 100091104. Its totient is φ = 99999900.

The previous prime is 100045487. The next prime is 100045511. The reversal of 100045501 is 105540001.

It is a happy number.

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: 105540001 = 7 ⋅15077143.

It is a cyclic number.

It is not a de Polignac number, because 100045501 - 2²¹ = 97948349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100045511) 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 3 ways as a sum of consecutive naturals, for example, 19335 + ... + 23956.

It is an arithmetic number, because the mean of its divisors is an integer number (25022776).

Almost surely, 2^100045501 is an apocalyptic number.

It is an amenable number.

100045501 is a deficient number, since it is larger than the sum of its proper divisors (45603).

100045501 is an equidigital number, since it uses as much as digits as its factorization.

100045501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45602.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 100045501 is about 10002.2747912662. The cubic root of 100045501 is about 464.2292716644.

Adding to 100045501 its reverse (105540001), we get a palindrome (205585502).

The spelling of 100045501 in words is "one hundred million, forty-five thousand, five hundred one".