54191161 has 2 divisors, whose sum is σ = 54191162. Its totient is φ = 54191160.

The previous prime is 54191153. The next prime is 54191167. The reversal of 54191161 is 16119145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51566761 + 2624400 = 7181^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 54191161 - 2³ = 54191153 is a prime.

It is not a weakly prime, because it can be changed into another prime (54191167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27095580 + 27095581.

It is an arithmetic number, because the mean of its divisors is an integer number (27095581).

Almost surely, 2^54191161 is an apocalyptic number.

It is an amenable number.

54191161 is a deficient number, since it is larger than the sum of its proper divisors (1).

54191161 is an equidigital number, since it uses as much as digits as its factorization.

54191161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The square root of 54191161 is about 7361.4645961249. The cubic root of 54191161 is about 378.4218040862.

The spelling of 54191161 in words is "fifty-four million, one hundred ninety-one thousand, one hundred sixty-one".