Search a number
-
+
125471000197 is a prime number
BaseRepresentation
bin111010011011010100…
…1111000011010000101
3102222212021211012212101
41310312221320122011
54023431034001242
6133350210552101
712031200622204
oct1646651703205
9388767735771
10125471000197
1149237121594
1220397b98631
13baa77b63aa
146103bb123b
1533e54479b7
hex1d36a78685

125471000197 has 2 divisors, whose sum is σ = 125471000198. Its totient is φ = 125471000196.

The previous prime is 125471000153. The next prime is 125471000201. The reversal of 125471000197 is 791000174521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122537802916 + 2933197281 = 350054^2 + 54159^2 .

It is a cyclic number.

It is not a de Polignac number, because 125471000197 - 215 = 125470967429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125471000117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62735500098 + 62735500099.

It is an arithmetic number, because the mean of its divisors is an integer number (62735500099).

Almost surely, 2125471000197 is an apocalyptic number.

It is an amenable number.

125471000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

125471000197 is an equidigital number, since it uses as much as digits as its factorization.

125471000197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 125471000197 in words is "one hundred twenty-five billion, four hundred seventy-one million, one hundred ninety-seven", and thus it is an aban number.