135702267137 has 4 divisors (see below), whose sum is σ = 135754044756. Its totient is φ = 135650489520.

The previous prime is 135702267121. The next prime is 135702267187. The reversal of 135702267137 is 731762207531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127274843536 + 8427423601 = 356756^2 + 91801^2 .

It is a cyclic number.

It is not a de Polignac number, because 135702267137 - 2⁴ = 135702267121 is a prime.

It is a super-2 number, since 2×135702267137² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135702267187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25884878 + ... + 25890119.

It is an arithmetic number, because the mean of its divisors is an integer number (33938511189).

Almost surely, 2^135702267137 is an apocalyptic number.

It is an amenable number.

135702267137 is a deficient number, since it is larger than the sum of its proper divisors (51777619).

135702267137 is an equidigital number, since it uses as much as digits as its factorization.

135702267137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51777618.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 135702267137 in words is "one hundred thirty-five billion, seven hundred two million, two hundred sixty-seven thousand, one hundred thirty-seven".