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125161325 = 526182073
BaseRepresentation
bin1110111010111…
…00111101101101
322201111212001122
413131130331231
5224020130300
620230350325
73046565552
oct735347555
9281455048
10125161325
1164717613
1235abb3a5
131cc13273
14128a0a29
15aec4c85
hex775cf6d

125161325 has 12 divisors (see below), whose sum is σ = 157746228. Its totient is φ = 98486400.

The previous prime is 125161297. The next prime is 125161349. The reversal of 125161325 is 523161521.

It can be written as a sum of positive squares in 6 ways, for example, as 65593801 + 59567524 = 8099^2 + 7718^2 .

It is a de Polignac number, because none of the positive numbers 2k-125161325 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125161294 and 125161303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39512 + ... + 42561.

It is an arithmetic number, because the mean of its divisors is an integer number (13145519).

Almost surely, 2125161325 is an apocalyptic number.

It is an amenable number.

125161325 is a deficient number, since it is larger than the sum of its proper divisors (32584903).

125161325 is an equidigital number, since it uses as much as digits as its factorization.

125161325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82144 (or 82139 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 125161325 is about 11187.5522345149. The cubic root of 125161325 is about 500.2150075303.

The spelling of 125161325 in words is "one hundred twenty-five million, one hundred sixty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 61 305 1525 82073 410365 2051825 5006453 25032265 125161325