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125361061 = 725414729
BaseRepresentation
bin1110111100011…
…01101110100101
322201220000001021
413132031232211
5224043023221
620234531141
73051360100
oct736155645
9281800037
10125361061
1164843691
1235b96ab1
131cc83157
1412913737
15b014041
hex778dba5

125361061 has 12 divisors (see below), whose sum is σ = 146128620. Its totient is φ = 107231040.

The previous prime is 125361053. The next prime is 125361073. The reversal of 125361061 is 160163521.

It can be written as a sum of positive squares in 2 ways, for example, as 20196036 + 105165025 = 4494^2 + 10255^2 .

It is not a de Polignac number, because 125361061 - 23 = 125361053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125301061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24145 + ... + 28873.

It is an arithmetic number, because the mean of its divisors is an integer number (12177385).

Almost surely, 2125361061 is an apocalyptic number.

It is an amenable number.

125361061 is a deficient number, since it is larger than the sum of its proper divisors (20767559).

125361061 is an equidigital number, since it uses as much as digits as its factorization.

125361061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284 (or 5277 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 125361061 is about 11196.4753829051. The cubic root of 125361061 is about 500.4809518889.

The spelling of 125361061 in words is "one hundred twenty-five million, three hundred sixty-one thousand, sixty-one".

Divisors: 1 7 49 541 3787 4729 26509 33103 231721 2558389 17908723 125361061