Search a number
61471 is a prime number
BaseRepresentation
bin1111000000011111
310010022201
433000133
53431341
61152331
7344134
oct170037
9103281
1061471
1142203
122b6a7
1321c97
141858b
1513331
hexf01f

61471 has 2 divisors, whose sum is σ = 61472. Its totient is φ = 61470.

The previous prime is 61469. The next prime is 61483. The reversal of 61471 is 17416.

It is a happy number.

61471 is nontrivially palindromic in base 15.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61471 - 21 = 61469 is a prime.

It is a super-3 number, since 3×614713 = 696838423170333, which contains 333 as substring.

Together with 61469, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30735 + 30736.

It is an arithmetic number, because the mean of its divisors is an integer number (30736).

261471 is an apocalyptic number.

61471 is a deficient number, since it is larger than the sum of its proper divisors (1).

61471 is an equidigital number, since it uses as much as digits as its factorization.

61471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168, while the sum is 19.

The square root of 61471 is about 247.9334588151. The cubic root of 61471 is about 39.4660285816.

Adding to 61471 its reverse (17416), we get a palindrome (78887).

The spelling of 61471 in words is "sixty-one thousand, four hundred seventy-one".