133814813491 has 8 divisors (see below), whose sum is σ = 134237092544. Its totient is φ = 133392643560.

The previous prime is 133814813479. The next prime is 133814813507. The reversal of 133814813491 is 194318418331.

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 133814813491 - 2²¹ = 133812716339 is a prime.

It is a super-2 number, since 2×133814813491² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133814813191) 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, 2930860 + ... + 2976166.

It is an arithmetic number, because the mean of its divisors is an integer number (16779636568).

Almost surely, 2^133814813491 is an apocalyptic number.

133814813491 is a deficient number, since it is larger than the sum of its proper divisors (422279053).

133814813491 is an equidigital number, since it uses as much as digits as its factorization.

133814813491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54561.

The product of its digits is 248832, while the sum is 46.

The spelling of 133814813491 in words is "one hundred thirty-three billion, eight hundred fourteen million, eight hundred thirteen thousand, four hundred ninety-one".