64130873 has 2 divisors, whose sum is σ = 64130874. Its totient is φ = 64130872.

The previous prime is 64130837. The next prime is 64130887. The reversal of 64130873 is 37803146.

Together with previous prime (64130837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64128064 + 2809 = 8008^2 + 53^2 .

It is a cyclic number.

It is not a de Polignac number, because 64130873 - 2⁸ = 64130617 is a prime.

It is a super-2 number, since 2×64130873² = 8225537743484258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64130813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32065436 + 32065437.

It is an arithmetic number, because the mean of its divisors is an integer number (32065437).

Almost surely, 2^64130873 is an apocalyptic number.

It is an amenable number.

64130873 is a deficient number, since it is larger than the sum of its proper divisors (1).

64130873 is an equidigital number, since it uses as much as digits as its factorization.

64130873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 64130873 is about 8008.1753851923. The cubic root of 64130873 is about 400.2724664463.

The spelling of 64130873 in words is "sixty-four million, one hundred thirty thousand, eight hundred seventy-three".