54102161 has 4 divisors (see below), whose sum is σ = 55847424. Its totient is φ = 52356900.

The previous prime is 54102151. The next prime is 54102163. The reversal of 54102161 is 16120145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54102161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54102163) 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 in 3 ways as a sum of consecutive naturals, for example, 872585 + ... + 872646.

It is an arithmetic number, because the mean of its divisors is an integer number (13961856).

Almost surely, 2^54102161 is an apocalyptic number.

It is an amenable number.

54102161 is a deficient number, since it is larger than the sum of its proper divisors (1745263).

54102161 is a wasteful number, since it uses less digits than its factorization.

54102161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745262.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 54102161 is about 7355.4171193754. The cubic root of 54102161 is about 378.2145255407.

The spelling of 54102161 in words is "fifty-four million, one hundred two thousand, one hundred sixty-one".