730143641 has 2 divisors, whose sum is σ = 730143642. Its totient is φ = 730143640.

The previous prime is 730143611. The next prime is 730143653. The reversal of 730143641 is 146341037.

730143641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 686649616 + 43494025 = 26204^2 + 6595^2 .

It is an emirp because it is prime and its reverse (146341037) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730143641 is a prime.

It is not a weakly prime, because it can be changed into another prime (730143611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365071820 + 365071821.

It is an arithmetic number, because the mean of its divisors is an integer number (365071821).

Almost surely, 2^730143641 is an apocalyptic number.

It is an amenable number.

730143641 is a deficient number, since it is larger than the sum of its proper divisors (1).

730143641 is an equidigital number, since it uses as much as digits as its factorization.

730143641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 730143641 is about 27021.1702374268. The cubic root of 730143641 is about 900.4703882634.

Adding to 730143641 its reverse (146341037), we get a palindrome (876484678).

The spelling of 730143641 in words is "seven hundred thirty million, one hundred forty-three thousand, six hundred forty-one".