2102140653 has 4 divisors (see below), whose sum is σ = 2802854208. Its totient is φ = 1401427100.

The previous prime is 2102140633. The next prime is 2102140657. The reversal of 2102140653 is 3560412012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102140653 - 2⁶ = 2102140589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102140657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350356773 + ... + 350356778.

It is an arithmetic number, because the mean of its divisors is an integer number (700713552).

Almost surely, 2^2102140653 is an apocalyptic number.

It is an amenable number.

2102140653 is a deficient number, since it is larger than the sum of its proper divisors (700713555).

2102140653 is an equidigital number, since it uses as much as digits as its factorization.

2102140653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700713554.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2102140653 is about 45849.1074395129. The cubic root of 2102140653 is about 1281.0141403384.

Adding to 2102140653 its reverse (3560412012), we get a palindrome (5662552665).

The spelling of 2102140653 in words is "two billion, one hundred two million, one hundred forty thousand, six hundred fifty-three".