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64144207 is a prime number
BaseRepresentation
bin1111010010110…
…0001101001111
311110200212022101
43310230031033
5112410103312
610210455531
71406134231
oct364541517
9143625271
1064144207
1133231546
12195945a7
131039b36a
14873a251
155970a57
hex3d2c34f

64144207 has 2 divisors, whose sum is σ = 64144208. Its totient is φ = 64144206.

The previous prime is 64144189. The next prime is 64144219. The reversal of 64144207 is 70244146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64144207 - 223 = 55755599 is a prime.

It is a super-2 number, since 2×641442072 = 8228958583317698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64144007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32072103 + 32072104.

It is an arithmetic number, because the mean of its divisors is an integer number (32072104).

Almost surely, 264144207 is an apocalyptic number.

64144207 is a deficient number, since it is larger than the sum of its proper divisors (1).

64144207 is an equidigital number, since it uses as much as digits as its factorization.

64144207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 64144207 is about 8009.0078661467. The cubic root of 64144207 is about 400.3002058847.

The spelling of 64144207 in words is "sixty-four million, one hundred forty-four thousand, two hundred seven".