653771189 has 2 divisors, whose sum is σ = 653771190. Its totient is φ = 653771188.

The previous prime is 653771149. The next prime is 653771197. The reversal of 653771189 is 981177356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 558376900 + 95394289 = 23630^2 + 9767^2 .

It is a cyclic number.

It is not a de Polignac number, because 653771189 - 2¹⁶ = 653705653 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 (653771149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326885594 + 326885595.

It is an arithmetic number, because the mean of its divisors is an integer number (326885595).

Almost surely, 2^653771189 is an apocalyptic number.

It is an amenable number.

653771189 is a deficient number, since it is larger than the sum of its proper divisors (1).

653771189 is an equidigital number, since it uses as much as digits as its factorization.

653771189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 653771189 is about 25568.9497046711. The cubic root of 653771189 is about 867.9111330123.

It can be divided in two parts, 65377 and 1189, that added together give a palindrome (66566).

The spelling of 653771189 in words is "six hundred fifty-three million, seven hundred seventy-one thousand, one hundred eighty-nine".