133403005 has 4 divisors (see below), whose sum is σ = 160083612. Its totient is φ = 106722400.

The previous prime is 133403003. The next prime is 133403021. The reversal of 133403005 is 500304331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500304331 = 47 ⋅10644773.

It can be written as a sum of positive squares in 2 ways, for example, as 33942276 + 99460729 = 5826^2 + 9973^2 .

It is not a de Polignac number, because 133403005 - 2¹ = 133403003 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 (133403003) 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, 13340296 + ... + 13340305.

It is an arithmetic number, because the mean of its divisors is an integer number (40020903).

Almost surely, 2^133403005 is an apocalyptic number.

It is an amenable number.

133403005 is a deficient number, since it is larger than the sum of its proper divisors (26680607).

133403005 is an equidigital number, since it uses as much as digits as its factorization.

133403005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26680606.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 133403005 is about 11550.0218614512. The cubic root of 133403005 is about 510.9619228600.

Adding to 133403005 its reverse (500304331), we get a palindrome (633707336).

The spelling of 133403005 in words is "one hundred thirty-three million, four hundred three thousand, five".