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420160591 is a prime number
BaseRepresentation
bin11001000010110…
…010010001001111
31002021121100222101
4121002302101033
51330030114331
6105405255531
713261206664
oct3102622117
91067540871
10420160591
111a6195964
12b88645a7
136907cb46
143db31a6b
1526d47061
hex190b244f

420160591 has 2 divisors, whose sum is σ = 420160592. Its totient is φ = 420160590.

The previous prime is 420160561. The next prime is 420160673. The reversal of 420160591 is 195061024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420160591 - 225 = 386606159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420160501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210080295 + 210080296.

It is an arithmetic number, because the mean of its divisors is an integer number (210080296).

Almost surely, 2420160591 is an apocalyptic number.

420160591 is a deficient number, since it is larger than the sum of its proper divisors (1).

420160591 is an equidigital number, since it uses as much as digits as its factorization.

420160591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 420160591 is about 20497.8191766832. The cubic root of 420160591 is about 748.9826746153.

The spelling of 420160591 in words is "four hundred twenty million, one hundred sixty thousand, five hundred ninety-one".