2153785133 has 8 divisors (see below), whose sum is σ = 2248260120. Its totient is φ = 2061218880.

The previous prime is 2153785103. The next prime is 2153785157. The reversal of 2153785133 is 3315873512.

It can be written as a sum of positive squares in 4 ways, for example, as 2866249 + 2150918884 = 1693^2 + 46378^2 .

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 2153785133 - 2¹⁸ = 2153522989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153785103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474878 + ... + 479391.

It is an arithmetic number, because the mean of its divisors is an integer number (281032515).

Almost surely, 2^2153785133 is an apocalyptic number.

It is an amenable number.

2153785133 is a deficient number, since it is larger than the sum of its proper divisors (94474987).

2153785133 is an equidigital number, since it uses as much as digits as its factorization.

2153785133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954367.

The product of its digits is 75600, while the sum is 38.

The square root of 2153785133 is about 46408.8906676296. The cubic root of 2153785133 is about 1291.4198522312.

The spelling of 2153785133 in words is "two billion, one hundred fifty-three million, seven hundred eighty-five thousand, one hundred thirty-three".