1356140057 has 2 divisors, whose sum is σ = 1356140058. Its totient is φ = 1356140056.

The previous prime is 1356140047. The next prime is 1356140077. The reversal of 1356140057 is 7500416531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1291755481 + 64384576 = 35941^2 + 8024^2 .

It is an emirp because it is prime and its reverse (7500416531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1356140057 - 2¹⁶ = 1356074521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1356140047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678070028 + 678070029.

It is an arithmetic number, because the mean of its divisors is an integer number (678070029).

Almost surely, 2^1356140057 is an apocalyptic number.

It is an amenable number.

1356140057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356140057 is an equidigital number, since it uses as much as digits as its factorization.

1356140057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1356140057 is about 36825.8069429578. The cubic root of 1356140057 is about 1106.8824833831.

Adding to 1356140057 its reverse (7500416531), we get a palindrome (8856556588).

The spelling of 1356140057 in words is "one billion, three hundred fifty-six million, one hundred forty thousand, fifty-seven".