731561041 has 2 divisors, whose sum is σ = 731561042. Its totient is φ = 731561040.

The previous prime is 731561029. The next prime is 731561053. The reversal of 731561041 is 140165137.

It is a balanced prime because it is at equal distance from previous prime (731561029) and next prime (731561053).

It can be written as a sum of positive squares in only one way, i.e., 712890000 + 18671041 = 26700^2 + 4321^2 .

It is a cyclic number.

It is not a de Polignac number, because 731561041 - 2²⁹ = 194690129 is a prime.

It is not a weakly prime, because it can be changed into another prime (731561741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365780520 + 365780521.

It is an arithmetic number, because the mean of its divisors is an integer number (365780521).

Almost surely, 2^731561041 is an apocalyptic number.

It is an amenable number.

731561041 is a deficient number, since it is larger than the sum of its proper divisors (1).

731561041 is an equidigital number, since it uses as much as digits as its factorization.

731561041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 731561041 is about 27047.3851046640. The cubic root of 731561041 is about 901.0526945620.

The spelling of 731561041 in words is "seven hundred thirty-one million, five hundred sixty-one thousand, forty-one".