135408370300261 has 8 divisors (see below), whose sum is σ = 135522388368864. Its totient is φ = 135294389496240.

The previous prime is 135408370300213. The next prime is 135408370300373. The reversal of 135408370300261 is 162003073804531.

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 135408370300261 - 2²¹ = 135408368203109 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 (135408370000261) 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, 2043295 + ... + 16582876.

It is an arithmetic number, because the mean of its divisors is an integer number (16940298546108).

Almost surely, 2^{135408370300261} is an apocalyptic number.

It is an amenable number.

135408370300261 is a deficient number, since it is larger than the sum of its proper divisors (114018068603).

135408370300261 is a wasteful number, since it uses less digits than its factorization.

135408370300261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18632291.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 135408370300261 in words is "one hundred thirty-five trillion, four hundred eight billion, three hundred seventy million, three hundred thousand, two hundred sixty-one".