1440142101 has 12 divisors (see below), whose sum is σ = 2091098880. Its totient is φ = 955066920.

The previous prime is 1440142091. The next prime is 1440142139. The reversal of 1440142101 is 1012410441.

1440142101 is a `hidden beast` number, since 1 + 440 + 14 + 210 + 1 = 666.

It is not a de Polignac number, because 1440142101 - 2⁶ = 1440142037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440142201) 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 11 ways as a sum of consecutive naturals, for example, 417171 + ... + 420608.

It is an arithmetic number, because the mean of its divisors is an integer number (174258240).

Almost surely, 2^1440142101 is an apocalyptic number.

It is an amenable number.

1440142101 is a deficient number, since it is larger than the sum of its proper divisors (650956779).

1440142101 is a wasteful number, since it uses less digits than its factorization.

1440142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837976 (or 837973 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1440142101 is about 37949.2042209056. The cubic root of 1440142101 is about 1129.2803784801.

Adding to 1440142101 its reverse (1012410441), we get a palindrome (2452552542).

The spelling of 1440142101 in words is "one billion, four hundred forty million, one hundred forty-two thousand, one hundred one".