2140553 has 4 divisors (see below), whose sum is σ = 2149140. Its totient is φ = 2131968.

The previous prime is 2140549. The next prime is 2140573. The reversal of 2140553 is 3550412.

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 1317904 + 822649 = 1148^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140553 - 2² = 2140549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2140513) 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, 3908 + ... + 4421.

It is an arithmetic number, because the mean of its divisors is an integer number (537285).

2^2140553 is an apocalyptic number.

It is an amenable number.

2140553 is a deficient number, since it is larger than the sum of its proper divisors (8587).

2140553 is an equidigital number, since it uses as much as digits as its factorization.

2140553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2140553 is about 1463.0628831325. The cubic root of 2140553 is about 128.8769734273.

Adding to 2140553 its reverse (3550412), we get a palindrome (5690965).

The spelling of 2140553 in words is "two million, one hundred forty thousand, five hundred fifty-three".