135372813 has 8 divisors (see below), whose sum is σ = 181075008. Its totient is φ = 89959584.

The previous prime is 135372803. The next prime is 135372817. The reversal of 135372813 is 318273531.

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

It is not a de Polignac number, because 135372813 - 2⁶ = 135372749 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135372817) 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, 71145 + ... + 73022.

It is an arithmetic number, because the mean of its divisors is an integer number (22634376).

Almost surely, 2^135372813 is an apocalyptic number.

It is an amenable number.

135372813 is a deficient number, since it is larger than the sum of its proper divisors (45702195).

135372813 is a wasteful number, since it uses less digits than its factorization.

135372813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144483.

The product of its digits is 15120, while the sum is 33.

The square root of 135372813 is about 11634.9822947867. The cubic root of 135372813 is about 513.4645731325.

The spelling of 135372813 in words is "one hundred thirty-five million, three hundred seventy-two thousand, eight hundred thirteen".