1440425135 has 8 divisors (see below), whose sum is σ = 1745624736. Its totient is φ = 1140930400.

The previous prime is 1440425069. The next prime is 1440425153. The reversal of 1440425135 is 5315240441.

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

It is not a de Polignac number, because 1440425135 - 2¹⁸ = 1440162991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1440425098 and 1440425107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425659 + ... + 1426668.

It is an arithmetic number, because the mean of its divisors is an integer number (218203092).

Almost surely, 2^1440425135 is an apocalyptic number.

1440425135 is a deficient number, since it is larger than the sum of its proper divisors (305199601).

1440425135 is a wasteful number, since it uses less digits than its factorization.

1440425135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852433.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1440425135 is about 37952.9331541055. The cubic root of 1440425135 is about 1129.3543535427.

Adding to 1440425135 its reverse (5315240441), we get a palindrome (6755665576).

The spelling of 1440425135 in words is "one billion, four hundred forty million, four hundred twenty-five thousand, one hundred thirty-five".