731653061 has 2 divisors, whose sum is σ = 731653062. Its totient is φ = 731653060.

The previous prime is 731653031. The next prime is 731653063. The reversal of 731653061 is 160356137.

731653061 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., 689325025 + 42328036 = 26255^2 + 6506^2 .

It is an emirp because it is prime and its reverse (160356137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 731653061 - 2¹⁰ = 731652037 is a prime.

It is a Sophie Germain prime.

Together with 731653063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (731653063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365826530 + 365826531.

It is an arithmetic number, because the mean of its divisors is an integer number (365826531).

Almost surely, 2^731653061 is an apocalyptic number.

It is an amenable number.

731653061 is a deficient number, since it is larger than the sum of its proper divisors (1).

731653061 is an equidigital number, since it uses as much as digits as its factorization.

731653061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 731653061 is about 27049.0861398310. The cubic root of 731653061 is about 901.0904728598.

The spelling of 731653061 in words is "seven hundred thirty-one million, six hundred fifty-three thousand, sixty-one".