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BaseRepresentation
bin1110111101110001
310010002021
432331301
53430142
61151441
7343465
oct167561
9103067
1061297
1142065
122b581
1321b92
14184a5
1513267
hexef71

61297 has 2 divisors, whose sum is σ = 61298. Its totient is φ = 61296.

The previous prime is 61291. The next prime is 61331. The reversal of 61297 is 79216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46656 + 14641 = 216^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 61297 - 27 = 61169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30648 + 30649.

It is an arithmetic number, because the mean of its divisors is an integer number (30649).

261297 is an apocalyptic number.

It is an amenable number.

61297 is a deficient number, since it is larger than the sum of its proper divisors (1).

61297 is an equidigital number, since it uses as much as digits as its factorization.

61297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 61297 is about 247.5823095457. The cubic root of 61297 is about 39.4287558377.

The spelling of 61297 in words is "sixty-one thousand, two hundred ninety-seven".