1340745148439 has 8 divisors (see below), whose sum is σ = 1343909750400. Its totient is φ = 1337582528056.

The previous prime is 1340745148427. The next prime is 1340745148447. The reversal of 1340745148439 is 9348415470431.

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 1340745148439 - 2⁴ = 1340745148423 is a prime.

It is a super-2 number, since 2×1340745148439² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340745148139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863804 + ... + 1851390.

It is an arithmetic number, because the mean of its divisors is an integer number (167988718800).

Almost surely, 2^{1340745148439} is an apocalyptic number.

1340745148439 is a deficient number, since it is larger than the sum of its proper divisors (3164601961).

1340745148439 is an equidigital number, since it uses as much as digits as its factorization.

1340745148439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990789.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 1340745148439 in words is "one trillion, three hundred forty billion, seven hundred forty-five million, one hundred forty-eight thousand, four hundred thirty-nine".