135133061 has 16 divisors (see below), whose sum is σ = 161233920. Its totient is φ = 110816640.

The previous prime is 135133049. The next prime is 135133087. The reversal of 135133061 is 160331531.

It is a happy number.

135133061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 135133061 - 2¹⁸ = 134870917 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 (135133021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15815 + ... + 22811.

It is an arithmetic number, because the mean of its divisors is an integer number (10077120).

Almost surely, 2^135133061 is an apocalyptic number.

It is an amenable number.

135133061 is a deficient number, since it is larger than the sum of its proper divisors (26100859).

135133061 is an equidigital number, since it uses as much as digits as its factorization.

135133061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 135133061 is about 11624.6746621142. The cubic root of 135133061 is about 513.1612702223.

Adding to 135133061 its reverse (160331531), we get a palindrome (295464592).

The spelling of 135133061 in words is "one hundred thirty-five million, one hundred thirty-three thousand, sixty-one".