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8124157 is a prime number
BaseRepresentation
bin11110111111011011111101
3120021202020201
4132333123331
54034433112
6450043501
7126024406
oct36773375
916252221
108124157
114649888
122879591
1318b5ac2
1411169ad
15aa7257
hex7bf6fd

8124157 has 2 divisors, whose sum is σ = 8124158. Its totient is φ = 8124156.

The previous prime is 8124143. The next prime is 8124161. The reversal of 8124157 is 7514218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5480281 + 2643876 = 2341^2 + 1626^2 .

It is a cyclic number.

It is not a de Polignac number, because 8124157 - 27 = 8124029 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8124107) by changing a digit.

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 as a sum of consecutive naturals, namely, 4062078 + 4062079.

It is an arithmetic number, because the mean of its divisors is an integer number (4062079).

Almost surely, 28124157 is an apocalyptic number.

It is an amenable number.

8124157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8124157 is an equidigital number, since it uses as much as digits as its factorization.

8124157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 8124157 is about 2850.2906869300. The cubic root of 8124157 is about 201.0293349263.

It can be divided in two parts, 8124 and 157, that added together give a square (8281 = 912).

The spelling of 8124157 in words is "eight million, one hundred twenty-four thousand, one hundred fifty-seven".