654751441 has 2 divisors, whose sum is σ = 654751442. Its totient is φ = 654751440.

The previous prime is 654751423. The next prime is 654751507. The reversal of 654751441 is 144157456.

654751441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627753025 + 26998416 = 25055^2 + 5196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654751441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654751441.

It is not a weakly prime, because it can be changed into another prime (654751541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327375720 + 327375721.

It is an arithmetic number, because the mean of its divisors is an integer number (327375721).

Almost surely, 2^654751441 is an apocalyptic number.

It is an amenable number.

654751441 is a deficient number, since it is larger than the sum of its proper divisors (1).

654751441 is an equidigital number, since it uses as much as digits as its factorization.

654751441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

The square root of 654751441 is about 25588.1113214711. Note that the first 3 decimals coincide. The cubic root of 654751441 is about 868.3446928377.

The spelling of 654751441 in words is "six hundred fifty-four million, seven hundred fifty-one thousand, four hundred forty-one".