1340955505 has 8 divisors (see below), whose sum is σ = 1664634600. Its totient is φ = 1035772416.

The previous prime is 1340955493. The next prime is 1340955521. The reversal of 1340955505 is 5055590431.

It can be written as a sum of positive squares in 4 ways, for example, as 457617664 + 883337841 = 21392^2 + 29721^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1340955505 - 2⁷ = 1340955377 is a prime.

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, 4623840 + ... + 4624129.

It is an arithmetic number, because the mean of its divisors is an integer number (208079325).

Almost surely, 2^1340955505 is an apocalyptic number.

It is an amenable number.

1340955505 is a deficient number, since it is larger than the sum of its proper divisors (323679095).

1340955505 is an equidigital number, since it uses as much as digits as its factorization.

1340955505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9248003.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 1340955505 is about 36619.0593134231. The cubic root of 1340955505 is about 1102.7357537670.

The spelling of 1340955505 in words is "one billion, three hundred forty million, nine hundred fifty-five thousand, five hundred five".