657465043 has 2 divisors, whose sum is σ = 657465044. Its totient is φ = 657465042.

The previous prime is 657465007. The next prime is 657465047. The reversal of 657465043 is 340564756.

657465043 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-657465043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 657464987 and 657465005.

It is not a weakly prime, because it can be changed into another prime (657465047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328732521 + 328732522.

It is an arithmetic number, because the mean of its divisors is an integer number (328732522).

Almost surely, 2^657465043 is an apocalyptic number.

657465043 is a deficient number, since it is larger than the sum of its proper divisors (1).

657465043 is an equidigital number, since it uses as much as digits as its factorization.

657465043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 657465043 is about 25641.0811589527. The cubic root of 657465043 is about 869.5426507977.

It can be divided in two parts, 6574 and 65043, that added together give a palindrome (71617).

The spelling of 657465043 in words is "six hundred fifty-seven million, four hundred sixty-five thousand, forty-three".