135366013 has 4 divisors (see below), whose sum is σ = 142490560. Its totient is φ = 128241468.

The previous prime is 135365959. The next prime is 135366029. The reversal of 135366013 is 310663531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310663531 = 3299 ⋅94169.

It is a cyclic number.

It is not a de Polignac number, because 135366013 - 2⁹ = 135365501 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 (135366043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562245 + ... + 3562282.

It is an arithmetic number, because the mean of its divisors is an integer number (35622640).

Almost surely, 2^135366013 is an apocalyptic number.

It is an amenable number.

135366013 is a deficient number, since it is larger than the sum of its proper divisors (7124547).

135366013 is an equidigital number, since it uses as much as digits as its factorization.

135366013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124546.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 135366013 is about 11634.6900689275. The cubic root of 135366013 is about 513.4559755974.

The spelling of 135366013 in words is "one hundred thirty-five million, three hundred sixty-six thousand, thirteen".