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52158131 is a prime number
BaseRepresentation
bin1100011011110…
…1111010110011
310122010220111122
43012331322303
5101323030011
65101532455
71202223344
oct306757263
9118126448
1052158131
11274951a3
121557412b
13aa627cc
146cda0cb
1548a43db
hex31bdeb3

52158131 has 2 divisors, whose sum is σ = 52158132. Its totient is φ = 52158130.

The previous prime is 52158107. The next prime is 52158133. The reversal of 52158131 is 13185125.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52158131 is a prime.

It is a super-2 number, since 2×521581312 = 5440941258826322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 52158133, 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 52158131.

It is not a weakly prime, because it can be changed into another prime (52158133) 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, 26079065 + 26079066.

It is an arithmetic number, because the mean of its divisors is an integer number (26079066).

Almost surely, 252158131 is an apocalyptic number.

52158131 is a deficient number, since it is larger than the sum of its proper divisors (1).

52158131 is an equidigital number, since it uses as much as digits as its factorization.

52158131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 26.

The square root of 52158131 is about 7222.0586400278. The cubic root of 52158131 is about 373.6290826318.

The spelling of 52158131 in words is "fifty-two million, one hundred fifty-eight thousand, one hundred thirty-one".