Search a number
-
+
125034731 is a prime number
BaseRepresentation
bin1110111001111…
…10000011101011
322201021102101222
413130332003223
5224002102411
620223532255
73045530513
oct734760353
9281242358
10125034731
1164640498
1235a5a08b
131cb9a763
141286a843
15ae9c4db
hex773e0eb

125034731 has 2 divisors, whose sum is σ = 125034732. Its totient is φ = 125034730.

The previous prime is 125034727. The next prime is 125034733. The reversal of 125034731 is 137430521.

It is a strong prime.

It is an emirp because it is prime and its reverse (137430521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125034731 - 22 = 125034727 is a prime.

It is a super-3 number, since 3×1250347313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 125034733, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125034731.

It is not a weakly prime, because it can be changed into another prime (125034733) 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 as a sum of consecutive naturals, namely, 62517365 + 62517366.

It is an arithmetic number, because the mean of its divisors is an integer number (62517366).

Almost surely, 2125034731 is an apocalyptic number.

125034731 is a deficient number, since it is larger than the sum of its proper divisors (1).

125034731 is an equidigital number, since it uses as much as digits as its factorization.

125034731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 125034731 is about 11181.8929971629. The cubic root of 125034731 is about 500.0463037118.

The spelling of 125034731 in words is "one hundred twenty-five million, thirty-four thousand, seven hundred thirty-one".