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140825 = 5243131
BaseRepresentation
bin100010011000011001
321011011202
4202120121
514001300
63003545
71124366
oct423031
9234152
10140825
1196893
12695b5
134c139
143946d
152bad5
hex22619

140825 has 12 divisors (see below), whose sum is σ = 180048. Its totient is φ = 109200.

The previous prime is 140813. The next prime is 140827. The reversal of 140825 is 528041.

It is not a de Polignac number, because 140825 - 26 = 140761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140797 and 140806.

It is not an unprimeable number, because it can be changed into a prime (140827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1010 + ... + 1140.

It is an arithmetic number, because the mean of its divisors is an integer number (15004).

2140825 is an apocalyptic number.

It is an amenable number.

140825 is a deficient number, since it is larger than the sum of its proper divisors (39223).

140825 is a wasteful number, since it uses less digits than its factorization.

140825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 140825 is about 375.2665719192. The cubic root of 140825 is about 52.0267367436.

Adding to 140825 its reverse (528041), we get a palindrome (668866).

The spelling of 140825 in words is "one hundred forty thousand, eight hundred twenty-five".

Divisors: 1 5 25 43 131 215 655 1075 3275 5633 28165 140825