135478747 has 2 divisors, whose sum is σ = 135478748. Its totient is φ = 135478746.

The previous prime is 135478741. The next prime is 135478771. The reversal of 135478747 is 747874531.

It is a weak prime.

It is an emirp because it is prime and its reverse (747874531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135478747 - 2¹⁹ = 134954459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135478697 and 135478706.

It is not a weakly prime, because it can be changed into another prime (135478741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67739373 + 67739374.

It is an arithmetic number, because the mean of its divisors is an integer number (67739374).

Almost surely, 2^135478747 is an apocalyptic number.

135478747 is a deficient number, since it is larger than the sum of its proper divisors (1).

135478747 is an equidigital number, since it uses as much as digits as its factorization.

135478747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 46.

The square root of 135478747 is about 11639.5337965058. The cubic root of 135478747 is about 513.5984729233.

The spelling of 135478747 in words is "one hundred thirty-five million, four hundred seventy-eight thousand, seven hundred forty-seven".