135551051205 has 16 divisors (see below), whose sum is σ = 223877865984. Its totient is φ = 69961832640.

The previous prime is 135551051203. The next prime is 135551051221. The reversal of 135551051205 is 502150155531.

It is not a de Polignac number, because 135551051205 - 2¹ = 135551051203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135551051201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145753354 + ... + 145754283.

It is an arithmetic number, because the mean of its divisors is an integer number (13992366624).

Almost surely, 2^135551051205 is an apocalyptic number.

135551051205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135551051205 is a deficient number, since it is larger than the sum of its proper divisors (88326814779).

135551051205 is a wasteful number, since it uses less digits than its factorization.

135551051205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291507676.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 135551051205 in words is "one hundred thirty-five billion, five hundred fifty-one million, fifty-one thousand, two hundred five".