144555101 has 4 divisors (see below), whose sum is σ = 144877500. Its totient is φ = 144232704.

The previous prime is 144555091. The next prime is 144555109. The reversal of 144555101 is 101555441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101555441 = 13 ⋅7811957.

It can be written as a sum of positive squares in 2 ways, for example, as 105555076 + 39000025 = 10274^2 + 6245^2 .

It is a cyclic number.

It is not a de Polignac number, because 144555101 - 2¹⁴ = 144538717 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 (144555109) 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, 160526 + ... + 161423.

It is an arithmetic number, because the mean of its divisors is an integer number (36219375).

Almost surely, 2^144555101 is an apocalyptic number.

It is an amenable number.

144555101 is a deficient number, since it is larger than the sum of its proper divisors (322399).

144555101 is an equidigital number, since it uses as much as digits as its factorization.

144555101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322398.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 144555101 is about 12023.1069611810. The cubic root of 144555101 is about 524.8209227484.

The spelling of 144555101 in words is "one hundred forty-four million, five hundred fifty-five thousand, one hundred one".