135550141 has 8 divisors (see below), whose sum is σ = 139112568. Its totient is φ = 132000000.

The previous prime is 135550091. The next prime is 135550157. The reversal of 135550141 is 141055531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 46172025 + 89378116 = 6795^2 + 9454^2 .

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

It is a 6-Lehmer number, since φ(135550141) divides (135550141-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 135550141 - 2⁷ = 135550013 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 (135550241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21891 + ... + 27391.

It is an arithmetic number, because the mean of its divisors is an integer number (17389071).

Almost surely, 2^135550141 is an apocalyptic number.

It is an amenable number.

135550141 is a deficient number, since it is larger than the sum of its proper divisors (3562427).

135550141 is an equidigital number, since it uses as much as digits as its factorization.

135550141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143.

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

The square root of 135550141 is about 11642.6002679814. The cubic root of 135550141 is about 513.6886750425.

The spelling of 135550141 in words is "one hundred thirty-five million, five hundred fifty thousand, one hundred forty-one".