135911369 has 4 divisors (see below), whose sum is σ = 148266960. Its totient is φ = 123555780.

The previous prime is 135911341. The next prime is 135911381. The reversal of 135911369 is 963119531.

135911369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 135911369 - 2²⁴ = 119134153 is a prime.

It is a super-2 number, since 2×135911369² = 36943800446908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135911329) 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, 6177779 + ... + 6177800.

It is an arithmetic number, because the mean of its divisors is an integer number (37066740).

Almost surely, 2^135911369 is an apocalyptic number.

It is an amenable number.

135911369 is a deficient number, since it is larger than the sum of its proper divisors (12355591).

135911369 is a wasteful number, since it uses less digits than its factorization.

135911369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12355590.

The product of its digits is 21870, while the sum is 38.

The square root of 135911369 is about 11658.1031475965. The cubic root of 135911369 is about 514.1445804930.

The spelling of 135911369 in words is "one hundred thirty-five million, nine hundred eleven thousand, three hundred sixty-nine".