135965023 has 4 divisors (see below), whose sum is σ = 135994768. Its totient is φ = 135935280.

The previous prime is 135965003. The next prime is 135965051. The reversal of 135965023 is 320569531.

It is a happy number.

135965023 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.

It is a cyclic number.

It is not a de Polignac number, because 135965023 - 2⁵ = 135964991 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 135965023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135965003) 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, 6411 + ... + 17692.

It is an arithmetic number, because the mean of its divisors is an integer number (33998692).

Almost surely, 2^135965023 is an apocalyptic number.

135965023 is a deficient number, since it is larger than the sum of its proper divisors (29745).

135965023 is an equidigital number, since it uses as much as digits as its factorization.

135965023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29744.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 135965023 is about 11660.4040667551. The cubic root of 135965023 is about 514.2122282163.

The spelling of 135965023 in words is "one hundred thirty-five million, nine hundred sixty-five thousand, twenty-three".