2133761 has 8 divisors (see below), whose sum is σ = 2517504. Its totient is φ = 1769760.

The previous prime is 2133743. The next prime is 2133773. The reversal of 2133761 is 1673312.

It is a happy number.

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 2133761 - 2⁶ = 2133697 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3⁴ + 3⁹ + 7⁵ + 6² + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4700 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (314688).

2^2133761 is an apocalyptic number.

It is an amenable number.

2133761 is a deficient number, since it is larger than the sum of its proper divisors (383743).

2133761 is an equidigital number, since it uses as much as digits as its factorization.

2133761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9871.

The product of its digits is 756, while the sum is 23.

The square root of 2133761 is about 1460.7398810192. The cubic root of 2133761 is about 128.7405196149.

The spelling of 2133761 in words is "two million, one hundred thirty-three thousand, seven hundred sixty-one".