54142247 has 2 divisors, whose sum is σ = 54142248. Its totient is φ = 54142246.

The previous prime is 54142219. The next prime is 54142271. The reversal of 54142247 is 74224145.

54142247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54142247 - 2⁶ = 54142183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54142147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27071123 + 27071124.

It is an arithmetic number, because the mean of its divisors is an integer number (27071124).

Almost surely, 2^54142247 is an apocalyptic number.

54142247 is a deficient number, since it is larger than the sum of its proper divisors (1).

54142247 is an equidigital number, since it uses as much as digits as its factorization.

54142247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 29.

The square root of 54142247 is about 7358.1415452545. The cubic root of 54142247 is about 378.3079128428.

The spelling of 54142247 in words is "fifty-four million, one hundred forty-two thousand, two hundred forty-seven".