135844845187 has 32 divisors (see below), whose sum is σ = 141792739200. Its totient is φ = 130055777280.

The previous prime is 135844845133. The next prime is 135844845217. The reversal of 135844845187 is 781548448531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135844845187 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135844846187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221606293 + ... + 221606905.

It is an arithmetic number, because the mean of its divisors is an integer number (4431023100).

Almost surely, 2^135844845187 is an apocalyptic number.

135844845187 is a deficient number, since it is larger than the sum of its proper divisors (5947894013).

135844845187 is a wasteful number, since it uses less digits than its factorization.

135844845187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183.

The product of its digits is 17203200, while the sum is 58.

The spelling of 135844845187 in words is "one hundred thirty-five billion, eight hundred forty-four million, eight hundred forty-five thousand, one hundred eighty-seven".