Search a number
BaseRepresentation
bin11110001111100011
320021220222
4132033203
512431000
62353255
71024103
oct361743
9207828
10123875
1185084
125b82b
13444cb
1433203
1526a85
hex1e3e3

123875 has 8 divisors (see below), whose sum is σ = 154752. Its totient is φ = 99000.

The previous prime is 123863. The next prime is 123887. The reversal of 123875 is 578321.

It is an interprime number because it is at equal distance from previous prime (123863) and next prime (123887).

It is not a de Polignac number, because 123875 - 28 = 123619 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

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 7 ways as a sum of consecutive naturals, for example, 371 + ... + 620.

It is an arithmetic number, because the mean of its divisors is an integer number (19344).

2123875 is an apocalyptic number.

123875 is a deficient number, since it is larger than the sum of its proper divisors (30877).

123875 is an frugal number, since it uses more digits than its factorization.

123875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 996 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 123875 is about 351.9588044076. The cubic root of 123875 is about 49.8495477364.

The spelling of 123875 in words is "one hundred twenty-three thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 991 4955 24775 123875