1340262559 has 2 divisors, whose sum is σ = 1340262560. Its totient is φ = 1340262558.

The previous prime is 1340262551. The next prime is 1340262577. The reversal of 1340262559 is 9552620431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340262559 - 2³ = 1340262551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340262551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670131279 + 670131280.

It is an arithmetic number, because the mean of its divisors is an integer number (670131280).

Almost surely, 2^1340262559 is an apocalyptic number.

1340262559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340262559 is an equidigital number, since it uses as much as digits as its factorization.

1340262559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1340262559 is about 36609.5965424368. The cubic root of 1340262559 is about 1102.5457728197.

The spelling of 1340262559 in words is "one billion, three hundred forty million, two hundred sixty-two thousand, five hundred fifty-nine".