135235141 has 4 divisors (see below), whose sum is σ = 142352800. Its totient is φ = 128117484.

The previous prime is 135235127. The next prime is 135235151. The reversal of 135235141 is 141532531.

It is a happy number.

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 135235141 - 2⁷ = 135235013 is a prime.

It is a super-2 number, since 2×135235141² = 36577086722579762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135235151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558801 + ... + 3558838.

It is an arithmetic number, because the mean of its divisors is an integer number (35588200).

Almost surely, 2^135235141 is an apocalyptic number.

It is an amenable number.

135235141 is a deficient number, since it is larger than the sum of its proper divisors (7117659).

135235141 is an equidigital number, since it uses as much as digits as its factorization.

135235141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117658.

The product of its digits is 1800, while the sum is 25.

The square root of 135235141 is about 11629.0644937587. The cubic root of 135235141 is about 513.2904523222.

Adding to 135235141 its reverse (141532531), we get a palindrome (276767672).

The spelling of 135235141 in words is "one hundred thirty-five million, two hundred thirty-five thousand, one hundred forty-one".