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125005 = 5231087
BaseRepresentation
bin11110100001001101
320100110211
4132201031
513000010
62402421
71030306
oct364115
9210424
10125005
1185a11
1260411
1344b8a
14337ad
152708a
hex1e84d

125005 has 8 divisors (see below), whose sum is σ = 156672. Its totient is φ = 95568.

The previous prime is 125003. The next prime is 125017. The reversal of 125005 is 500521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125005 - 21 = 125003 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (19584).

125005 is a Friedman number, since it can be written as 50^(2+1+0)+5, using all its digits and the basic arithmetic operations.

2125005 is an apocalyptic number.

It is an amenable number.

125005 is a deficient number, since it is larger than the sum of its proper divisors (31667).

125005 is a wasteful number, since it uses less digits than its factorization.

125005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 125005 is about 353.5604615904. The cubic root of 125005 is about 50.0006666578. Note that the first 3 decimals are identical.

Adding to 125005 its reverse (500521), we get a palindrome (625526).

It can be divided in two parts, 12500 and 5, that multiplied together give a square (62500 = 2502).

The spelling of 125005 in words is "one hundred twenty-five thousand, five".

Divisors: 1 5 23 115 1087 5435 25001 125005