2133454451 has 4 divisors (see below), whose sum is σ = 2133842304. Its totient is φ = 2133066600.

The previous prime is 2133454439. The next prime is 2133454471. The reversal of 2133454451 is 1544543312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2133454451 is a prime.

It is a super-2 number, since 2×2133454451² = 9103255788983422802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133454471) 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, 185555 + ... + 196716.

It is an arithmetic number, because the mean of its divisors is an integer number (533460576).

Almost surely, 2^2133454451 is an apocalyptic number.

2133454451 is a deficient number, since it is larger than the sum of its proper divisors (387853).

2133454451 is an equidigital number, since it uses as much as digits as its factorization.

2133454451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387852.

The product of its digits is 28800, while the sum is 32.

The square root of 2133454451 is about 46189.3326537632. The cubic root of 2133454451 is about 1287.3435410593.

Adding to 2133454451 its reverse (1544543312), we get a palindrome (3677997763).

The spelling of 2133454451 in words is "two billion, one hundred thirty-three million, four hundred fifty-four thousand, four hundred fifty-one".