2133308453 has 4 divisors (see below), whose sum is σ = 2133489708. Its totient is φ = 2133127200.

The previous prime is 2133308399. The next prime is 2133308479. The reversal of 2133308453 is 3548033312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 328588129 + 1804720324 = 18127^2 + 42482^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133308453 - 2²² = 2129114149 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 (2133308953) 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, 71648 + ... + 96953.

It is an arithmetic number, because the mean of its divisors is an integer number (533372427).

Almost surely, 2^2133308453 is an apocalyptic number.

It is an amenable number.

2133308453 is a deficient number, since it is larger than the sum of its proper divisors (181255).

2133308453 is a wasteful number, since it uses less digits than its factorization.

2133308453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181254.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2133308453 is about 46187.7521968757. The cubic root of 2133308453 is about 1287.3141749344.

The spelling of 2133308453 in words is "two billion, one hundred thirty-three million, three hundred eight thousand, four hundred fifty-three".