2133453857 has 8 divisors (see below), whose sum is σ = 2140252416. Its totient is φ = 2126667312.

The previous prime is 2133453851. The next prime is 2133453859. The reversal of 2133453857 is 7583543312.

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 2133453857 - 2²² = 2129259553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133453851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457178 + ... + 461820.

It is an arithmetic number, because the mean of its divisors is an integer number (267531552).

Almost surely, 2^2133453857 is an apocalyptic number.

It is an amenable number.

2133453857 is a deficient number, since it is larger than the sum of its proper divisors (6798559).

2133453857 is an equidigital number, since it uses as much as digits as its factorization.

2133453857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007.

The product of its digits is 302400, while the sum is 41.

The square root of 2133453857 is about 46189.3262237067. The cubic root of 2133453857 is about 1287.3434215845.

The spelling of 2133453857 in words is "two billion, one hundred thirty-three million, four hundred fifty-three thousand, eight hundred fifty-seven".