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1025125 = 5359139
BaseRepresentation
bin11111010010001100101
31221002012121
43322101211
5230301000
633545541
711466463
oct3722145
91832177
101025125
11640212
124152b1
1329b7aa
141c9833
15153b1a
hexfa465

1025125 has 16 divisors (see below), whose sum is σ = 1310400. Its totient is φ = 800400.

The previous prime is 1025119. The next prime is 1025137. The reversal of 1025125 is 5215201.

It is not a de Polignac number, because 1025125 - 25 = 1025093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025099 and 1025108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7306 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (81900).

21025125 is an apocalyptic number.

It is an amenable number.

1025125 is a deficient number, since it is larger than the sum of its proper divisors (285275).

1025125 is an equidigital number, since it uses as much as digits as its factorization.

1025125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1025125 is about 1012.4845677836. The cubic root of 1025125 is about 100.8305822319.

The spelling of 1025125 in words is "one million, twenty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 59 125 139 295 695 1475 3475 7375 8201 17375 41005 205025 1025125