133005413 has 4 divisors (see below), whose sum is σ = 133748640. Its totient is φ = 132262188.

The previous prime is 133005409. The next prime is 133005419. The reversal of 133005413 is 314500331.

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 133005413 - 2² = 133005409 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 (133005419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371345 + ... + 371702.

It is an arithmetic number, because the mean of its divisors is an integer number (33437160).

Almost surely, 2^133005413 is an apocalyptic number.

It is an amenable number.

133005413 is a deficient number, since it is larger than the sum of its proper divisors (743227).

133005413 is an equidigital number, since it uses as much as digits as its factorization.

133005413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743226.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 133005413 is about 11532.7972755962. The cubic root of 133005413 is about 510.4537970408.

Adding to 133005413 its reverse (314500331), we get a palindrome (447505744).

The spelling of 133005413 in words is "one hundred thirty-three million, five thousand, four hundred thirteen".