57206147 has 2 divisors, whose sum is σ = 57206148. Its totient is φ = 57206146.

The previous prime is 57206113. The next prime is 57206153. The reversal of 57206147 is 74160275.

57206147 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 57206147 - 2¹² = 57202051 is a prime.

It is not a weakly prime, because it can be changed into another prime (57206167) 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, 28603073 + 28603074.

It is an arithmetic number, because the mean of its divisors is an integer number (28603074).

Almost surely, 2^57206147 is an apocalyptic number.

57206147 is a deficient number, since it is larger than the sum of its proper divisors (1).

57206147 is an equidigital number, since it uses as much as digits as its factorization.

57206147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 57206147 is about 7563.4745322504. The cubic root of 57206147 is about 385.3135063778.

The spelling of 57206147 in words is "fifty-seven million, two hundred six thousand, one hundred forty-seven".