135344331 has 16 divisors (see below), whose sum is σ = 200716320. Its totient is φ = 90136800.

The previous prime is 135344323. The next prime is 135344333. The reversal of 135344331 is 133443531.

It is not a de Polignac number, because 135344331 - 2³ = 135344323 is a prime.

It is a super-2 number, since 2×135344331² = 36636175867675122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 135344295 and 135344304.

It is not an unprimeable number, because it can be changed into a prime (135344333) 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, 33201 + ... + 37053.

It is an arithmetic number, because the mean of its divisors is an integer number (12544770).

Almost surely, 2^135344331 is an apocalyptic number.

135344331 is a deficient number, since it is larger than the sum of its proper divisors (65371989).

135344331 is a wasteful number, since it uses less digits than its factorization.

135344331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163 (or 5157 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 135344331 is about 11633.7582491644. The cubic root of 135344331 is about 513.4285601808.

Adding to 135344331 its reverse (133443531), we get a palindrome (268787862).

The spelling of 135344331 in words is "one hundred thirty-five million, three hundred forty-four thousand, three hundred thirty-one".