64104251 has 2 divisors, whose sum is σ = 64104252. Its totient is φ = 64104250.

The previous prime is 64104241. The next prime is 64104269. The reversal of 64104251 is 15240146.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64104251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64104211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32052125 + 32052126.

It is an arithmetic number, because the mean of its divisors is an integer number (32052126).

Almost surely, 2^64104251 is an apocalyptic number.

64104251 is a deficient number, since it is larger than the sum of its proper divisors (1).

64104251 is an equidigital number, since it uses as much as digits as its factorization.

64104251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 64104251 is about 8006.5130362724. The cubic root of 64104251 is about 400.2170717616.

Adding to 64104251 its reverse (15240146), we get a palindrome (79344397).

The spelling of 64104251 in words is "sixty-four million, one hundred four thousand, two hundred fifty-one".