133452865 has 64 divisors (see below), whose sum is σ = 212889600. Its totient is φ = 77946624.

The previous prime is 133452863. The next prime is 133452889. The reversal of 133452865 is 568254331.

It is not a de Polignac number, because 133452865 - 2¹ = 133452863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133452863) 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 63 ways as a sum of consecutive naturals, for example, 371556 + ... + 371914.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^133452865 is an apocalyptic number.

It is an amenable number.

133452865 is a deficient number, since it is larger than the sum of its proper divisors (79436735).

133452865 is a wasteful number, since it uses less digits than its factorization.

133452865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its digits is 86400, while the sum is 37.

The square root of 133452865 is about 11552.1800972803. The cubic root of 133452865 is about 511.0255730708.

The spelling of 133452865 in words is "one hundred thirty-three million, four hundred fifty-two thousand, eight hundred sixty-five".