135307320261 has 8 divisors (see below), whose sum is σ = 191022099264. Its totient is φ = 84898710720.

The previous prime is 135307320259. The next prime is 135307320293. The reversal of 135307320261 is 162023703531.

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

It is not a de Polignac number, because 135307320261 - 2¹ = 135307320259 is a prime.

It is a super-2 number, since 2×135307320261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135307320061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326542305 + ... + 1326542406.

It is an arithmetic number, because the mean of its divisors is an integer number (23877762408).

Almost surely, 2^135307320261 is an apocalyptic number.

It is an amenable number.

135307320261 is a deficient number, since it is larger than the sum of its proper divisors (55714779003).

135307320261 is a wasteful number, since it uses less digits than its factorization.

135307320261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653084731.

The product of its (nonzero) digits is 22680, while the sum is 33.

The spelling of 135307320261 in words is "one hundred thirty-five billion, three hundred seven million, three hundred twenty thousand, two hundred sixty-one".