135156613 has 8 divisors (see below), whose sum is σ = 143289432. Its totient is φ = 127044096.

The previous prime is 135156601. The next prime is 135156641. The reversal of 135156613 is 316651531.

It can be written as a sum of positive squares in 4 ways, for example, as 91833889 + 43322724 = 9583^2 + 6582^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135156613 - 2¹³ = 135148421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135156673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9931 + ... + 19207.

It is an arithmetic number, because the mean of its divisors is an integer number (17911179).

Almost surely, 2^135156613 is an apocalyptic number.

It is an amenable number.

135156613 is a deficient number, since it is larger than the sum of its proper divisors (8132819).

135156613 is an equidigital number, since it uses as much as digits as its factorization.

135156613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151.

The product of its digits is 8100, while the sum is 31.

The square root of 135156613 is about 11625.6876355767. The cubic root of 135156613 is about 513.1910810178.

It can be divided in two parts, 135156 and 613, that multiplied together give a triangular number (82850628 = T₁₂₈₇₂).

The spelling of 135156613 in words is "one hundred thirty-five million, one hundred fifty-six thousand, six hundred thirteen".