133875518393 has 4 divisors (see below), whose sum is σ = 133877101968. Its totient is φ = 133873934820.

The previous prime is 133875518377. The next prime is 133875518401. The reversal of 133875518393 is 393815578331.

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 133875518393 - 2⁴ = 133875518377 is a prime.

It is a super-3 number, since 3×133875518393³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133875518093) 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, 657371 + ... + 836592.

It is an arithmetic number, because the mean of its divisors is an integer number (33469275492).

Almost surely, 2^133875518393 is an apocalyptic number.

It is an amenable number.

133875518393 is a deficient number, since it is larger than the sum of its proper divisors (1583575).

133875518393 is an equidigital number, since it uses as much as digits as its factorization.

133875518393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583574.

The product of its digits is 8164800, while the sum is 56.

The spelling of 133875518393 in words is "one hundred thirty-three billion, eight hundred seventy-five million, five hundred eighteen thousand, three hundred ninety-three".