1440146121 has 8 divisors (see below), whose sum is σ = 1930144800. Its totient is φ = 955122432.

The previous prime is 1440146101. The next prime is 1440146131. The reversal of 1440146121 is 1216410441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1440146121 - 2²² = 1435951817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1440146091 and 1440146100.

It is not an unprimeable number, because it can be changed into a prime (1440146101) 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 7 ways as a sum of consecutive naturals, for example, 1243071 + ... + 1244228.

It is an arithmetic number, because the mean of its divisors is an integer number (241268100).

Almost surely, 2^1440146121 is an apocalyptic number.

It is an amenable number.

1440146121 is a deficient number, since it is larger than the sum of its proper divisors (489998679).

1440146121 is a wasteful number, since it uses less digits than its factorization.

1440146121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487495.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1440146121 is about 37949.2571864062. The cubic root of 1440146121 is about 1129.2814292336.

Adding to 1440146121 its reverse (1216410441), we get a palindrome (2656556562).

The spelling of 1440146121 in words is "one billion, four hundred forty million, one hundred forty-six thousand, one hundred twenty-one".