135664041 has 4 divisors (see below), whose sum is σ = 180885392. Its totient is φ = 90442692.

The previous prime is 135664033. The next prime is 135664049. The reversal of 135664041 is 140466531.

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 an interprime number because it is at equal distance from previous prime (135664033) and next prime (135664049).

It is not a de Polignac number, because 135664041 - 2³ = 135664033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135664049) 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, 22610671 + ... + 22610676.

It is an arithmetic number, because the mean of its divisors is an integer number (45221348).

Almost surely, 2^135664041 is an apocalyptic number.

It is an amenable number.

135664041 is a deficient number, since it is larger than the sum of its proper divisors (45221351).

135664041 is an equidigital number, since it uses as much as digits as its factorization.

135664041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45221350.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 135664041 is about 11647.4907598160. The cubic root of 135664041 is about 513.8325154430.

The spelling of 135664041 in words is "one hundred thirty-five million, six hundred sixty-four thousand, forty-one".