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1125579857 is a prime number
BaseRepresentation
bin100001100010110…
…1111110001010001
32220102222101021212
41003011233301101
54301122023412
6303405025505
736615161633
oct10305576121
92812871255
101125579857
115283a6896
12274b55295
1314c268aac
14a96baa53
1568c3a222
hex4316fc51

1125579857 has 2 divisors, whose sum is σ = 1125579858. Its totient is φ = 1125579856.

The previous prime is 1125579811. The next prime is 1125579901. The reversal of 1125579857 is 7589755211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 941814721 + 183765136 = 30689^2 + 13556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125579857 - 222 = 1121385553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1125579457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562789928 + 562789929.

It is an arithmetic number, because the mean of its divisors is an integer number (562789929).

Almost surely, 21125579857 is an apocalyptic number.

It is an amenable number.

1125579857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125579857 is an equidigital number, since it uses as much as digits as its factorization.

1125579857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882000, while the sum is 50.

The square root of 1125579857 is about 33549.6625467381. The cubic root of 1125579857 is about 1040.2205698958.

The spelling of 1125579857 in words is "one billion, one hundred twenty-five million, five hundred seventy-nine thousand, eight hundred fifty-seven".