1340514389 has 2 divisors, whose sum is σ = 1340514390. Its totient is φ = 1340514388.

The previous prime is 1340514349. The next prime is 1340514421. The reversal of 1340514389 is 9834150431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 747202225 + 593312164 = 27335^2 + 24358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340514389 is a prime.

It is a super-3 number, since 3×1340514389³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340514349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670257194 + 670257195.

It is an arithmetic number, because the mean of its divisors is an integer number (670257195).

Almost surely, 2^1340514389 is an apocalyptic number.

It is an amenable number.

1340514389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340514389 is an equidigital number, since it uses as much as digits as its factorization.

1340514389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1340514389 is about 36613.0357796236. The cubic root of 1340514389 is about 1102.6148231491.

The spelling of 1340514389 in words is "one billion, three hundred forty million, five hundred fourteen thousand, three hundred eighty-nine".