2190653 has 2 divisors, whose sum is σ = 2190654. Its totient is φ = 2190652.

The previous prime is 2190647. The next prime is 2190679. The reversal of 2190653 is 3560912.

It is an a-pointer prime, because the next prime (2190679) can be obtained adding 2190653 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194649 + 996004 = 1093^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190653 - 2¹⁴ = 2174269 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095326 + 1095327.

It is an arithmetic number, because the mean of its divisors is an integer number (1095327).

2^2190653 is an apocalyptic number.

It is an amenable number.

2190653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190653 is an equidigital number, since it uses as much as digits as its factorization.

2190653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2190653 is about 1480.0854705050. The cubic root of 2190653 is about 129.8746918765.

The spelling of 2190653 in words is "two million, one hundred ninety thousand, six hundred fifty-three".