135242941 has 4 divisors (see below), whose sum is σ = 135309952. Its totient is φ = 135175932.

The previous prime is 135242911. The next prime is 135242951. The reversal of 135242941 is 149242531.

135242941 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, and also an emirpimes, since its reverse is a distinct semiprime: 149242531 = 47 ⋅3175373.

It is a cyclic number.

It is not a de Polignac number, because 135242941 - 2²³ = 126854333 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 (135242911) 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, 30381 + ... + 34546.

It is an arithmetic number, because the mean of its divisors is an integer number (33827488).

Almost surely, 2^135242941 is an apocalyptic number.

It is an amenable number.

135242941 is a deficient number, since it is larger than the sum of its proper divisors (67011).

135242941 is an equidigital number, since it uses as much as digits as its factorization.

135242941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67010.

The product of its digits is 8640, while the sum is 31.

The square root of 135242941 is about 11629.3998555385. The cubic root of 135242941 is about 513.3003205377.

The spelling of 135242941 in words is "one hundred thirty-five million, two hundred forty-two thousand, nine hundred forty-one".