135615011 has 4 divisors (see below), whose sum is σ = 154988592. Its totient is φ = 116241432.

The previous prime is 135614977. The next prime is 135615019. The reversal of 135615011 is 110516531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135615011 - 2¹⁰ = 135613987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135615019) 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, 9686780 + ... + 9686793.

It is an arithmetic number, because the mean of its divisors is an integer number (38747148).

Almost surely, 2^135615011 is an apocalyptic number.

135615011 is a deficient number, since it is larger than the sum of its proper divisors (19373581).

135615011 is an equidigital number, since it uses as much as digits as its factorization.

135615011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19373580.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 135615011 is about 11645.3858244371. The cubic root of 135615011 is about 513.7706070118.

The spelling of 135615011 in words is "one hundred thirty-five million, six hundred fifteen thousand, eleven".