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BaseRepresentation
bin1101001110010001
32202021222
431032101
53213121
61054425
7313622
oct151621
982258
1054161
1137768
1227415
131b863
1415a49
15110ab
hexd391

54161 has 4 divisors (see below), whose sum is σ = 55524. Its totient is φ = 52800.

The previous prime is 54151. The next prime is 54163. The reversal of 54161 is 16145.

It is a happy number.

54161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16145 = 53229.

It can be written as a sum of positive squares in 2 ways, for example, as 25600 + 28561 = 160^2 + 169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (13881).

254161 is an apocalyptic number.

It is an amenable number.

54161 is a deficient number, since it is larger than the sum of its proper divisors (1363).

54161 is a wasteful number, since it uses less digits than its factorization.

54161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362.

The product of its digits is 120, while the sum is 17.

The square root of 54161 is about 232.7251597915. The cubic root of 54161 is about 37.8351585389.

The spelling of 54161 in words is "fifty-four thousand, one hundred sixty-one".

Divisors: 1 41 1321 54161