135537739 has 2 divisors, whose sum is σ = 135537740. Its totient is φ = 135537738.

The previous prime is 135537683. The next prime is 135537757. The reversal of 135537739 is 937735531.

It is a strong prime.

It is an emirp because it is prime and its reverse (937735531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135537739 - 2¹¹ = 135535691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135537695 and 135537704.

It is not a weakly prime, because it can be changed into another prime (135537769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67768869 + 67768870.

It is an arithmetic number, because the mean of its divisors is an integer number (67768870).

Almost surely, 2^135537739 is an apocalyptic number.

135537739 is a deficient number, since it is larger than the sum of its proper divisors (1).

135537739 is an equidigital number, since it uses as much as digits as its factorization.

135537739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 297675, while the sum is 43.

The square root of 135537739 is about 11642.0676428202. The cubic root of 135537739 is about 513.6730081185.

The spelling of 135537739 in words is "one hundred thirty-five million, five hundred thirty-seven thousand, seven hundred thirty-nine".