1340537734073 has 4 divisors (see below), whose sum is σ = 1343737108560. Its totient is φ = 1337338359588.

The previous prime is 1340537734057. The next prime is 1340537734087. The reversal of 1340537734073 is 3704377350431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1340537734073 - 2⁴ = 1340537734057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340537734043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1599686615 + ... + 1599687452.

It is an arithmetic number, because the mean of its divisors is an integer number (335934277140).

Almost surely, 2^{1340537734073} is an apocalyptic number.

It is an amenable number.

1340537734073 is a deficient number, since it is larger than the sum of its proper divisors (3199374487).

1340537734073 is an equidigital number, since it uses as much as digits as its factorization.

1340537734073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199374486.

The product of its (nonzero) digits is 2222640, while the sum is 47.

The spelling of 1340537734073 in words is "one trillion, three hundred forty billion, five hundred thirty-seven million, seven hundred thirty-four thousand, seventy-three".