100144501 has 4 divisors (see below), whose sum is σ = 106035372. Its totient is φ = 94253632.

The previous prime is 100144489. The next prime is 100144519. The reversal of 100144501 is 105441001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105441001 = 61 ⋅1728541.

It can be written as a sum of positive squares in 2 ways, for example, as 56927025 + 43217476 = 7545^2 + 6574^2 .

It is a cyclic number.

It is not a de Polignac number, because 100144501 - 2¹⁵ = 100111733 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 (100144201) 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, 2945410 + ... + 2945443.

It is an arithmetic number, because the mean of its divisors is an integer number (26508843).

Almost surely, 2^100144501 is an apocalyptic number.

It is an amenable number.

100144501 is a deficient number, since it is larger than the sum of its proper divisors (5890871).

100144501 is an equidigital number, since it uses as much as digits as its factorization.

100144501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890870.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 100144501 is about 10007.2224418167. Note that the first 3 decimals coincide. The cubic root of 100144501 is about 464.3823471694.

Adding to 100144501 its reverse (105441001), we get a palindrome (205585502).

The spelling of 100144501 in words is "one hundred million, one hundred forty-four thousand, five hundred one".