133854451 has 4 divisors (see below), whose sum is σ = 133925632. Its totient is φ = 133783272.

The previous prime is 133854443. The next prime is 133854467. The reversal of 133854451 is 154458331.

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

It is a cyclic number.

It is not a de Polignac number, because 133854451 - 2³ = 133854443 is a prime.

It is a super-2 number, since 2×133854451² = 35834028105022802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133854431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32691 + ... + 36556.

It is an arithmetic number, because the mean of its divisors is an integer number (33481408).

Almost surely, 2^133854451 is an apocalyptic number.

133854451 is a deficient number, since it is larger than the sum of its proper divisors (71181).

133854451 is an equidigital number, since it uses as much as digits as its factorization.

133854451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71180.

The product of its digits is 28800, while the sum is 34.

The square root of 133854451 is about 11569.5484354403. The cubic root of 133854451 is about 511.5376520218.

The spelling of 133854451 in words is "one hundred thirty-three million, eight hundred fifty-four thousand, four hundred fifty-one".