1340651615 has 16 divisors (see below), whose sum is σ = 1623978720. Its totient is φ = 1062437760.

The previous prime is 1340651597. The next prime is 1340651681. The reversal of 1340651615 is 5161560431.

1340651615 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1340651615 - 2²⁰ = 1339603039 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 240692 + ... + 246198.

It is an arithmetic number, because the mean of its divisors is an integer number (101498670).

Almost surely, 2^1340651615 is an apocalyptic number.

1340651615 is a deficient number, since it is larger than the sum of its proper divisors (283327105).

1340651615 is a wasteful number, since it uses less digits than its factorization.

1340651615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5962.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1340651615 is about 36614.9097363356. The cubic root of 1340651615 is about 1102.6524460846.

The spelling of 1340651615 in words is "one billion, three hundred forty million, six hundred fifty-one thousand, six hundred fifteen".