133404145 has 8 divisors (see below), whose sum is σ = 182954304. Its totient is φ = 91477104.

The previous prime is 133404143. The next prime is 133404217. The reversal of 133404145 is 541404331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133404145 - 2¹ = 133404143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133404143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1905739 + ... + 1905808.

It is an arithmetic number, because the mean of its divisors is an integer number (22869288).

Almost surely, 2^133404145 is an apocalyptic number.

It is an amenable number.

133404145 is a deficient number, since it is larger than the sum of its proper divisors (49550159).

133404145 is an equidigital number, since it uses as much as digits as its factorization.

133404145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811559.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 133404145 is about 11550.0712119017. The cubic root of 133404145 is about 510.9633783368.

Adding to 133404145 its reverse (541404331), we get a palindrome (674808476).

The spelling of 133404145 in words is "one hundred thirty-three million, four hundred four thousand, one hundred forty-five".