Search a number
-
+
125008831 is a prime number
BaseRepresentation
bin1110111001101…
…11101110111111
322201020002212201
413130313232333
5224000240311
620223212331
73045362143
oct734675677
9281202781
10125008831
1164622a92
1235a470a7
131cb8ba2c
1412861223
15ae949c1
hex7737bbf

125008831 has 2 divisors, whose sum is σ = 125008832. Its totient is φ = 125008830.

The previous prime is 125008817. The next prime is 125008853. The reversal of 125008831 is 138800521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125008831 - 25 = 125008799 is a prime.

It is a super-2 number, since 2×1250088312 = 31254415655973122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125008831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125008031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62504415 + 62504416.

It is an arithmetic number, because the mean of its divisors is an integer number (62504416).

Almost surely, 2125008831 is an apocalyptic number.

125008831 is a deficient number, since it is larger than the sum of its proper divisors (1).

125008831 is an equidigital number, since it uses as much as digits as its factorization.

125008831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 125008831 is about 11180.7348148501. The cubic root of 125008831 is about 500.0117743894.

The spelling of 125008831 in words is "one hundred twenty-five million, eight thousand, eight hundred thirty-one".