731128151497 has 2 divisors, whose sum is σ = 731128151498. Its totient is φ = 731128151496.

The previous prime is 731128151459. The next prime is 731128151549. The reversal of 731128151497 is 794151821137.

It is a happy number.

731128151497 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., 614129264896 + 116998886601 = 783664^2 + 342051^2 .

It is a cyclic number.

It is not a de Polignac number, because 731128151497 - 2³⁹ = 181372337609 is a prime.

It is a super-2 number, since 2×731128151497² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 731128151497.

It is not a weakly prime, because it can be changed into another prime (731128151297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365564075748 + 365564075749.

It is an arithmetic number, because the mean of its divisors is an integer number (365564075749).

Almost surely, 2^731128151497 is an apocalyptic number.

It is an amenable number.

731128151497 is a deficient number, since it is larger than the sum of its proper divisors (1).

731128151497 is an equidigital number, since it uses as much as digits as its factorization.

731128151497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 49.

The spelling of 731128151497 in words is "seven hundred thirty-one billion, one hundred twenty-eight million, one hundred fifty-one thousand, four hundred ninety-seven".