133340461 has 4 divisors (see below), whose sum is σ = 140358400. Its totient is φ = 126322524.

The previous prime is 133340443. The next prime is 133340477. The reversal of 133340461 is 164043331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133340461 - 2⁵ = 133340429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133340161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3508941 + ... + 3508978.

It is an arithmetic number, because the mean of its divisors is an integer number (35089600).

Almost surely, 2^133340461 is an apocalyptic number.

It is an amenable number.

133340461 is a deficient number, since it is larger than the sum of its proper divisors (7017939).

133340461 is an equidigital number, since it uses as much as digits as its factorization.

133340461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017938.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 133340461 is about 11547.3140166880. The cubic root of 133340461 is about 510.8820580972.

Adding to 133340461 its reverse (164043331), we get a palindrome (297383792).

The spelling of 133340461 in words is "one hundred thirty-three million, three hundred forty thousand, four hundred sixty-one".