135540151 has 8 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 131695608.

The previous prime is 135540143. The next prime is 135540179. The reversal of 135540151 is 151045531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135540151 - 2³ = 135540143 is a prime.

It is a super-2 number, since 2×135540151² = 36742265066205602, 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 (135540101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3841 + ... + 16906.

It is an arithmetic number, because the mean of its divisors is an integer number (17428320).

Almost surely, 2^135540151 is an apocalyptic number.

135540151 is a deficient number, since it is larger than the sum of its proper divisors (3886409).

135540151 is a wasteful number, since it uses less digits than its factorization.

135540151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20933.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 135540151 is about 11642.1712322058. The cubic root of 135540151 is about 513.6760551713.

Adding to 135540151 its reverse (151045531), we get a palindrome (286585682).

The spelling of 135540151 in words is "one hundred thirty-five million, five hundred forty thousand, one hundred fifty-one".