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76261 is a prime number
BaseRepresentation
bin10010100111100101
310212121111
4102213211
54420021
61345021
7435223
oct224745
9125544
1076261
1152329
1238171
1328933
141db13
15178e1
hex129e5

76261 has 2 divisors, whose sum is σ = 76262. Its totient is φ = 76260.

The previous prime is 76259. The next prime is 76283. The reversal of 76261 is 16267.

Subtracting from 76261 its product of digits (504), we obtain a palindrome (75757).

It is an a-pointer prime, because the next prime (76283) can be obtained adding 76261 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65025 + 11236 = 255^2 + 106^2 .

It is an emirp because it is prime and its reverse (16267) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76261 - 21 = 76259 is a prime.

Together with 76259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38130 + 38131.

It is an arithmetic number, because the mean of its divisors is an integer number (38131).

276261 is an apocalyptic number.

76261 is the 124-th centered decagonal number.

It is an amenable number.

76261 is a deficient number, since it is larger than the sum of its proper divisors (1).

76261 is an equidigital number, since it uses as much as digits as its factorization.

76261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 76261 is about 276.1539425755. The cubic root of 76261 is about 42.4066694742.

The spelling of 76261 in words is "seventy-six thousand, two hundred sixty-one".