9001440101 has 2 divisors, whose sum is σ = 9001440102. Its totient is φ = 9001440100.

The previous prime is 9001440089. The next prime is 9001440157. The reversal of 9001440101 is 1010441009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7199522500 + 1801917601 = 84850^2 + 42449^2 .

It is a cyclic number.

It is not a de Polignac number, because 9001440101 - 2⁶ = 9001440037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9001442101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500720050 + 4500720051.

It is an arithmetic number, because the mean of its divisors is an integer number (4500720051).

Almost surely, 2^9001440101 is an apocalyptic number.

It is an amenable number.

9001440101 is a deficient number, since it is larger than the sum of its proper divisors (1).

9001440101 is an equidigital number, since it uses as much as digits as its factorization.

9001440101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 9001440101 is about 94875.9195001556. The cubic root of 9001440101 is about 2080.1947627199.

The spelling of 9001440101 in words is "nine billion, one million, four hundred forty thousand, one hundred one".