135175451 has 4 divisors (see below), whose sum is σ = 137391504. Its totient is φ = 132959400.

The previous prime is 135175427. The next prime is 135175499. The reversal of 135175451 is 154571531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135175451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135175421) 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 3 ways as a sum of consecutive naturals, for example, 1107935 + ... + 1108056.

It is an arithmetic number, because the mean of its divisors is an integer number (34347876).

Almost surely, 2^135175451 is an apocalyptic number.

135175451 is a deficient number, since it is larger than the sum of its proper divisors (2216053).

135175451 is an equidigital number, since it uses as much as digits as its factorization.

135175451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216052.

The product of its digits is 10500, while the sum is 32.

The square root of 135175451 is about 11626.4977959831. The cubic root of 135175451 is about 513.2149226049.

The spelling of 135175451 in words is "one hundred thirty-five million, one hundred seventy-five thousand, four hundred fifty-one".