2197233653 has 2 divisors, whose sum is σ = 2197233654. Its totient is φ = 2197233652.

The previous prime is 2197233637. The next prime is 2197233671. The reversal of 2197233653 is 3563327912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1266861649 + 930372004 = 35593^2 + 30502^2 .

It is a cyclic number.

It is not a de Polignac number, because 2197233653 - 2⁴ = 2197233637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2197233653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197233673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098616826 + 1098616827.

It is an arithmetic number, because the mean of its divisors is an integer number (1098616827).

Almost surely, 2^2197233653 is an apocalyptic number.

It is an amenable number.

2197233653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197233653 is an equidigital number, since it uses as much as digits as its factorization.

2197233653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 41.

The square root of 2197233653 is about 46874.6589640927. The cubic root of 2197233653 is about 1300.0460837707.

The spelling of 2197233653 in words is "two billion, one hundred ninety-seven million, two hundred thirty-three thousand, six hundred fifty-three".