1340193727 has 2 divisors, whose sum is σ = 1340193728. Its totient is φ = 1340193726.

The previous prime is 1340193713. The next prime is 1340193749. The reversal of 1340193727 is 7273910431.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7273910431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1340193727 - 2¹¹ = 1340191679 is a prime.

It is a super-2 number, since 2×1340193727² = 3592238451780301058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340194727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670096863 + 670096864.

It is an arithmetic number, because the mean of its divisors is an integer number (670096864).

Almost surely, 2^1340193727 is an apocalyptic number.

1340193727 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340193727 is an equidigital number, since it uses as much as digits as its factorization.

1340193727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1340193727 is about 36608.6564489876. The cubic root of 1340193727 is about 1102.5268979782.

The spelling of 1340193727 in words is "one billion, three hundred forty million, one hundred ninety-three thousand, seven hundred twenty-seven".