133417637513 has 8 divisors (see below), whose sum is σ = 133891079976. Its totient is φ = 132944896000.

The previous prime is 133417637501. The next prime is 133417637603. The reversal of 133417637513 is 315736714331.

It can be written as a sum of positive squares in 4 ways, for example, as 75821477449 + 57596160064 = 275357^2 + 239992^2 .

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 133417637513 - 2⁴ = 133417637497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133417637413) 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, 207593 + ... + 556713.

It is an arithmetic number, because the mean of its divisors is an integer number (16736384997).

Almost surely, 2^133417637513 is an apocalyptic number.

It is an amenable number.

133417637513 is a deficient number, since it is larger than the sum of its proper divisors (473442463).

133417637513 is an equidigital number, since it uses as much as digits as its factorization.

133417637513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350475.

The product of its digits is 476280, while the sum is 44.

The spelling of 133417637513 in words is "one hundred thirty-three billion, four hundred seventeen million, six hundred thirty-seven thousand, five hundred thirteen".