1440114155 has 4 divisors (see below), whose sum is σ = 1728136992. Its totient is φ = 1152091320.

The previous prime is 1440114133. The next prime is 1440114167. The reversal of 1440114155 is 5514110441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1440114155 - 2¹² = 1440110059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144011411 + ... + 144011420.

It is an arithmetic number, because the mean of its divisors is an integer number (432034248).

Almost surely, 2^1440114155 is an apocalyptic number.

1440114155 is a deficient number, since it is larger than the sum of its proper divisors (288022837).

1440114155 is an equidigital number, since it uses as much as digits as its factorization.

1440114155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288022836.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 1440114155 is about 37948.8360164050. The cubic root of 1440114155 is about 1129.2730738598.

Adding to 1440114155 its reverse (5514110441), we get a palindrome (6954224596).

The spelling of 1440114155 in words is "one billion, four hundred forty million, one hundred fourteen thousand, one hundred fifty-five".