57148129 has 2 divisors, whose sum is σ = 57148130. Its totient is φ = 57148128.

The previous prime is 57148127. The next prime is 57148141. The reversal of 57148129 is 92184175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40297104 + 16851025 = 6348^2 + 4105^2 .

It is a cyclic number.

It is not a de Polignac number, because 57148129 - 2¹ = 57148127 is a prime.

Together with 57148127, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57148121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28574064 + 28574065.

It is an arithmetic number, because the mean of its divisors is an integer number (28574065).

Almost surely, 2^57148129 is an apocalyptic number.

It is an amenable number.

57148129 is a deficient number, since it is larger than the sum of its proper divisors (1).

57148129 is an equidigital number, since it uses as much as digits as its factorization.

57148129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The square root of 57148129 is about 7559.6381527160. The cubic root of 57148129 is about 385.1832017288.

The spelling of 57148129 in words is "fifty-seven million, one hundred forty-eight thousand, one hundred twenty-nine".