54194389 has 2 divisors, whose sum is σ = 54194390. Its totient is φ = 54194388.

The previous prime is 54194383. The next prime is 54194401. The reversal of 54194389 is 98349145.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51008164 + 3186225 = 7142^2 + 1785^2 .

It is a cyclic number.

It is not a de Polignac number, because 54194389 - 2⁹ = 54193877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54194383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27097194 + 27097195.

It is an arithmetic number, because the mean of its divisors is an integer number (27097195).

Almost surely, 2^54194389 is an apocalyptic number.

It is an amenable number.

54194389 is a deficient number, since it is larger than the sum of its proper divisors (1).

54194389 is an equidigital number, since it uses as much as digits as its factorization.

54194389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 54194389 is about 7361.6838427088. The cubic root of 54194389 is about 378.4293177428.

The spelling of 54194389 in words is "fifty-four million, one hundred ninety-four thousand, three hundred eighty-nine".