1440000101 has 4 divisors (see below), whose sum is σ = 1515789600. Its totient is φ = 1364210604.

The previous prime is 1440000083. The next prime is 1440000103. The reversal of 1440000101 is 1010000441.

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: 1010000441 = 113 ⋅8938057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440000101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440000103) 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, 37894721 + ... + 37894758.

It is an arithmetic number, because the mean of its divisors is an integer number (378947400).

Almost surely, 2^1440000101 is an apocalyptic number.

It is an amenable number.

1440000101 is a deficient number, since it is larger than the sum of its proper divisors (75789499).

1440000101 is an equidigital number, since it uses as much as digits as its factorization.

1440000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75789498.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1440000101 is about 37947.3332528124. Note that the first 3 decimals coincide. The cubic root of 1440000101 is about 1129.2432610585.

Adding to 1440000101 its reverse (1010000441), we get a palindrome (2450000542).

The spelling of 1440000101 in words is "one billion, four hundred forty million, one hundred one", and thus it is an aban number.