133905459403 has 4 divisors (see below), whose sum is σ = 133943407240. Its totient is φ = 133867511568.

The previous prime is 133905459397. The next prime is 133905459437. The reversal of 133905459403 is 304954509331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133905459403 - 2⁵ = 133905459371 is a prime.

It is a super-2 number, since 2×133905459403² (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 (133905459203) 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, 18968625 + ... + 18975682.

It is an arithmetic number, because the mean of its divisors is an integer number (33485851810).

Almost surely, 2^133905459403 is an apocalyptic number.

133905459403 is a deficient number, since it is larger than the sum of its proper divisors (37947837).

133905459403 is an equidigital number, since it uses as much as digits as its factorization.

133905459403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37947836.

The product of its (nonzero) digits is 874800, while the sum is 46.

The spelling of 133905459403 in words is "one hundred thirty-three billion, nine hundred five million, four hundred fifty-nine thousand, four hundred three".