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61151 is a prime number
BaseRepresentation
bin1110111011011111
310002212212
432323133
53424101
61151035
7343166
oct167337
9102785
1061151
1141a42
122b47b
1321aac
14183dd
15131bb
hexeedf

61151 has 2 divisors, whose sum is σ = 61152. Its totient is φ = 61150.

The previous prime is 61141. The next prime is 61153. The reversal of 61151 is 15116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61151 - 210 = 60127 is a prime.

Together with 61153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30575 + 30576.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

261151 is an apocalyptic number.

61151 is a deficient number, since it is larger than the sum of its proper divisors (1).

61151 is an equidigital number, since it uses as much as digits as its factorization.

61151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30, while the sum is 14.

The square root of 61151 is about 247.2872823256. The cubic root of 61151 is about 39.3974265457.

Adding to 61151 its reverse (15116), we get a palindrome (76267).

It can be divided in two parts, 6115 and 1, that added together give a palindrome (6116).

The spelling of 61151 in words is "sixty-one thousand, one hundred fifty-one".