653131729 has 2 divisors, whose sum is σ = 653131730. Its totient is φ = 653131728.

The previous prime is 653131613. The next prime is 653131747. The reversal of 653131729 is 927131356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337714129 + 315417600 = 18377^2 + 17760^2 .

It is a cyclic number.

It is not a de Polignac number, because 653131729 - 2²⁵ = 619577297 is a prime.

It is not a weakly prime, because it can be changed into another prime (653131229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326565864 + 326565865.

It is an arithmetic number, because the mean of its divisors is an integer number (326565865).

Almost surely, 2^653131729 is an apocalyptic number.

It is an amenable number.

653131729 is a deficient number, since it is larger than the sum of its proper divisors (1).

653131729 is an equidigital number, since it uses as much as digits as its factorization.

653131729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 37.

The square root of 653131729 is about 25556.4420254463. The cubic root of 653131729 is about 867.6280699115.

The spelling of 653131729 in words is "six hundred fifty-three million, one hundred thirty-one thousand, seven hundred twenty-nine".