57146213 has 2 divisors, whose sum is σ = 57146214. Its totient is φ = 57146212.

The previous prime is 57146209. The next prime is 57146227. The reversal of 57146213 is 31264175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30448324 + 26697889 = 5518^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 57146213 - 2² = 57146209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57142213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28573106 + 28573107.

It is an arithmetic number, because the mean of its divisors is an integer number (28573107).

Almost surely, 2^57146213 is an apocalyptic number.

It is an amenable number.

57146213 is a deficient number, since it is larger than the sum of its proper divisors (1).

57146213 is an equidigital number, since it uses as much as digits as its factorization.

57146213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 57146213 is about 7559.5114260116. The cubic root of 57146213 is about 385.1788970135.

The spelling of 57146213 in words is "fifty-seven million, one hundred forty-six thousand, two hundred thirteen".