Search a number
-
+
125017237 is a prime number
BaseRepresentation
bin1110111001110…
…01110010010101
322201020112102001
413130321302111
5224001022422
620223315301
73045425512
oct734716225
9281215361
10125017237
1164629334
1235a4bb31
131cb927c7
1412864309
15ae97227
hex7739c95

125017237 has 2 divisors, whose sum is σ = 125017238. Its totient is φ = 125017236.

The previous prime is 125017219. The next prime is 125017247. The reversal of 125017237 is 732710521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121682961 + 3334276 = 11031^2 + 1826^2 .

It is an emirp because it is prime and its reverse (732710521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125017237 - 215 = 124984469 is a prime.

It is a super-2 number, since 2×1250172372 = 31258619094228338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125017247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62508618 + 62508619.

It is an arithmetic number, because the mean of its divisors is an integer number (62508619).

Almost surely, 2125017237 is an apocalyptic number.

It is an amenable number.

125017237 is a deficient number, since it is larger than the sum of its proper divisors (1).

125017237 is an equidigital number, since it uses as much as digits as its factorization.

125017237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 125017237 is about 11181.1107230006. The cubic root of 125017237 is about 500.0229816103.

Adding to 125017237 its reverse (732710521), we get a palindrome (857727758).

The spelling of 125017237 in words is "one hundred twenty-five million, seventeen thousand, two hundred thirty-seven".