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14973661 is a prime number
BaseRepresentation
bin111001000111…
…101011011101
31001011202000001
4321013223131
512313124121
61252534301
7241162663
oct71075335
931152001
1014973661
1184a7a2a
125021391
133143671
141dbac33
1514ab991
hexe47add

14973661 has 2 divisors, whose sum is σ = 14973662. Its totient is φ = 14973660.

The previous prime is 14973659. The next prime is 14973671. The reversal of 14973661 is 16637941.

14973661 = T3158 + T3159 + T3160.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10692900 + 4280761 = 3270^2 + 2069^2 .

It is a cyclic number.

It is not a de Polignac number, because 14973661 - 21 = 14973659 is a prime.

Together with 14973659, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14973661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14973611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7486830 + 7486831.

It is an arithmetic number, because the mean of its divisors is an integer number (7486831).

Almost surely, 214973661 is an apocalyptic number.

14973661 is the 3160-th centered triangular number.

It is an amenable number.

14973661 is a deficient number, since it is larger than the sum of its proper divisors (1).

14973661 is an equidigital number, since it uses as much as digits as its factorization.

14973661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 14973661 is about 3869.5815019198. The cubic root of 14973661 is about 246.4767727278.

The spelling of 14973661 in words is "fourteen million, nine hundred seventy-three thousand, six hundred sixty-one".