54090161 has 2 divisors, whose sum is σ = 54090162. Its totient is φ = 54090160.

The previous prime is 54090149. The next prime is 54090167. The reversal of 54090161 is 16109045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29637136 + 24453025 = 5444^2 + 4945^2 .

It is a cyclic number.

It is not a de Polignac number, because 54090161 - 2⁶ = 54090097 is a prime.

It is a Chen prime.

It is equal to p_3231269 and since 54090161 and 3231269 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54090161.

It is not a weakly prime, because it can be changed into another prime (54090167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27045080 + 27045081.

It is an arithmetic number, because the mean of its divisors is an integer number (27045081).

Almost surely, 2^54090161 is an apocalyptic number.

It is an amenable number.

54090161 is a deficient number, since it is larger than the sum of its proper divisors (1).

54090161 is an equidigital number, since it uses as much as digits as its factorization.

54090161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 54090161 is about 7354.6013488156. The cubic root of 54090161 is about 378.1865604846.

The spelling of 54090161 in words is "fifty-four million, ninety thousand, one hundred sixty-one".