135066451 has 4 divisors (see below), whose sum is σ = 145456192. Its totient is φ = 124676712.

The previous prime is 135066443. The next prime is 135066457. The reversal of 135066451 is 154660531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154660531 = 191 ⋅809741.

It is a cyclic number.

It is not a de Polignac number, because 135066451 - 2³ = 135066443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135066457) 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, 5194851 + ... + 5194876.

It is an arithmetic number, because the mean of its divisors is an integer number (36364048).

Almost surely, 2^135066451 is an apocalyptic number.

135066451 is a deficient number, since it is larger than the sum of its proper divisors (10389741).

135066451 is a wasteful number, since it uses less digits than its factorization.

135066451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389740.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 135066451 is about 11621.8092825515. The cubic root of 135066451 is about 513.0769402791.

The spelling of 135066451 in words is "one hundred thirty-five million, sixty-six thousand, four hundred fifty-one".