135895961222138 has 8 divisors (see below), whose sum is σ = 219524245051188. Its totient is φ = 62721212871744.

The previous prime is 135895961222123. The next prime is 135895961222143. The reversal of 135895961222138 is 831222169598531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135856671243049 + 39289979089 = 11655757^2 + 198217^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2613383869631 + ... + 2613383869682.

Almost surely, 2^{135895961222138} is an apocalyptic number.

135895961222138 is a deficient number, since it is larger than the sum of its proper divisors (83628283829050).

135895961222138 is a wasteful number, since it uses less digits than its factorization.

135895961222138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5226767739328.

The product of its digits is 55987200, while the sum is 65.

The spelling of 135895961222138 in words is "one hundred thirty-five trillion, eight hundred ninety-five billion, nine hundred sixty-one million, two hundred twenty-two thousand, one hundred thirty-eight".