1356054109 has 2 divisors, whose sum is σ = 1356054110. Its totient is φ = 1356054108.

The previous prime is 1356054097. The next prime is 1356054137. The reversal of 1356054109 is 9014506531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1350342009 + 5712100 = 36747^2 + 2390^2 .

It is an emirp because it is prime and its reverse (9014506531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1356054109 - 2¹³ = 1356045917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356054169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678027054 + 678027055.

It is an arithmetic number, because the mean of its divisors is an integer number (678027055).

Almost surely, 2^1356054109 is an apocalyptic number.

It is an amenable number.

1356054109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356054109 is an equidigital number, since it uses as much as digits as its factorization.

1356054109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1356054109 is about 36824.6399710846. The cubic root of 1356054109 is about 1106.8590992828.

The spelling of 1356054109 in words is "one billion, three hundred fifty-six million, fifty-four thousand, one hundred nine".