135151121 has 8 divisors (see below), whose sum is σ = 158633280. Its totient is φ = 112712688.

The previous prime is 135151117. The next prime is 135151153. The reversal of 135151121 is 121151531.

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 135151121 - 2² = 135151117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135151093 and 135151102.

It is not an unprimeable number, because it can be changed into a prime (135151111) 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 7 ways as a sum of consecutive naturals, for example, 260651 + ... + 261168.

It is an arithmetic number, because the mean of its divisors is an integer number (19829160).

Almost surely, 2^135151121 is an apocalyptic number.

It is an amenable number.

135151121 is a deficient number, since it is larger than the sum of its proper divisors (23482159).

135151121 is an equidigital number, since it uses as much as digits as its factorization.

135151121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521863.

The product of its digits is 150, while the sum is 20.

The square root of 135151121 is about 11625.4514320950. The cubic root of 135151121 is about 513.1841298631.

The spelling of 135151121 in words is "one hundred thirty-five million, one hundred fifty-one thousand, one hundred twenty-one".