135555151 has 4 divisors (see below), whose sum is σ = 135581904. Its totient is φ = 135528400.

The previous prime is 135555131. The next prime is 135555181. The reversal of 135555151 is 151555531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151555531 = 439 ⋅345229.

It is a cyclic number.

It is not a de Polignac number, because 135555151 - 2⁷ = 135555023 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 (135555131) 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, 3190 + ... + 16771.

It is an arithmetic number, because the mean of its divisors is an integer number (33895476).

Almost surely, 2^135555151 is an apocalyptic number.

135555151 is a deficient number, since it is larger than the sum of its proper divisors (26753).

135555151 is an equidigital number, since it uses as much as digits as its factorization.

135555151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26752.

The product of its digits is 9375, while the sum is 31.

The square root of 135555151 is about 11642.8154241146. The cubic root of 135555151 is about 513.6950036933.

The spelling of 135555151 in words is "one hundred thirty-five million, five hundred fifty-five thousand, one hundred fifty-one".