64126523 has 2 divisors, whose sum is σ = 64126524. Its totient is φ = 64126522.

The previous prime is 64126519. The next prime is 64126537. The reversal of 64126523 is 32562146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64126523 - 2² = 64126519 is a prime.

It is a super-2 number, since 2×64126523² = 8224421904139058, which contains 22 as substring.

It is equal to p_3792116 and since 64126523 and 3792116 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (64126423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32063261 + 32063262.

It is an arithmetic number, because the mean of its divisors is an integer number (32063262).

Almost surely, 2^64126523 is an apocalyptic number.

64126523 is a deficient number, since it is larger than the sum of its proper divisors (1).

64126523 is an equidigital number, since it uses as much as digits as its factorization.

64126523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 64126523 is about 8007.9037831383. The cubic root of 64126523 is about 400.2634160752.

Adding to 64126523 its reverse (32562146), we get a palindrome (96688669).

The spelling of 64126523 in words is "sixty-four million, one hundred twenty-six thousand, five hundred twenty-three".