135525151 has 4 divisors (see below), whose sum is σ = 135554512. Its totient is φ = 135495792.

The previous prime is 135525113. The next prime is 135525161. The reversal of 135525151 is 151525531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151525531 = 347 ⋅436673.

It is a cyclic number.

It is not a de Polignac number, because 135525151 - 2¹³ = 135516959 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 (135525161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6075 + ... + 17548.

It is an arithmetic number, because the mean of its divisors is an integer number (33888628).

Almost surely, 2^135525151 is an apocalyptic number.

135525151 is a deficient number, since it is larger than the sum of its proper divisors (29361).

135525151 is an equidigital number, since it uses as much as digits as its factorization.

135525151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29360.

The product of its digits is 3750, while the sum is 28.

The square root of 135525151 is about 11641.5270046502. The cubic root of 135525151 is about 513.6571052512.

The spelling of 135525151 in words is "one hundred thirty-five million, five hundred twenty-five thousand, one hundred fifty-one".