65123057 has 2 divisors, whose sum is σ = 65123058. Its totient is φ = 65123056.

The previous prime is 65123053. The next prime is 65123099. The reversal of 65123057 is 75032156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 14371681 = 7124^2 + 3791^2 .

It is a cyclic number.

It is not a de Polignac number, because 65123057 - 2² = 65123053 is a prime.

It is not a weakly prime, because it can be changed into another prime (65123053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32561528 + 32561529.

It is an arithmetic number, because the mean of its divisors is an integer number (32561529).

Almost surely, 2^65123057 is an apocalyptic number.

It is an amenable number.

65123057 is a deficient number, since it is larger than the sum of its proper divisors (1).

65123057 is an equidigital number, since it uses as much as digits as its factorization.

65123057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 65123057 is about 8069.8858108402. The cubic root of 65123057 is about 402.3261484446.

Subtracting 65123057 from its reverse (75032156), we obtain a palindrome (9909099).

The spelling of 65123057 in words is "sixty-five million, one hundred twenty-three thousand, fifty-seven".