1340505035 has 4 divisors (see below), whose sum is σ = 1608606048. Its totient is φ = 1072404024.

The previous prime is 1340505031. The next prime is 1340505071. The reversal of 1340505035 is 5305050431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5305050431 = 59 ⋅89916109.

It is a cyclic number.

It is not a de Polignac number, because 1340505035 - 2² = 1340505031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340504995 and 1340505013.

It is not an unprimeable number, because it can be changed into a prime (1340505031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134050499 + ... + 134050508.

It is an arithmetic number, because the mean of its divisors is an integer number (402151512).

Almost surely, 2^1340505035 is an apocalyptic number.

1340505035 is a deficient number, since it is larger than the sum of its proper divisors (268101013).

1340505035 is an equidigital number, since it uses as much as digits as its factorization.

1340505035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268101012.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 1340505035 is about 36612.9080380130. The cubic root of 1340505035 is about 1102.6122584911.

Adding to 1340505035 its reverse (5305050431), we get a palindrome (6645555466).

The spelling of 1340505035 in words is "one billion, three hundred forty million, five hundred five thousand, thirty-five".