1440130111 has 16 divisors (see below), whose sum is σ = 1709798400. Its totient is φ = 1186805088.

The previous prime is 1440130103. The next prime is 1440130121. The reversal of 1440130111 is 1110310441.

It is not a de Polignac number, because 1440130111 - 2³ = 1440130103 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 (1440130121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33676 + ... + 63358.

It is an arithmetic number, because the mean of its divisors is an integer number (106862400).

Almost surely, 2^1440130111 is an apocalyptic number.

1440130111 is a deficient number, since it is larger than the sum of its proper divisors (269668289).

1440130111 is a wasteful number, since it uses less digits than its factorization.

1440130111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29958.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1440130111 is about 37949.0462462497. The cubic root of 1440130111 is about 1129.2772445048.

Adding to 1440130111 its reverse (1110310441), we get a palindrome (2550440552).

The spelling of 1440130111 in words is "one billion, four hundred forty million, one hundred thirty thousand, one hundred eleven".