212554057 has 2 divisors, whose sum is σ = 212554058. Its totient is φ = 212554056.

The previous prime is 212554039. The next prime is 212554061. The reversal of 212554057 is 750455212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201952521 + 10601536 = 14211^2 + 3256^2 .

It is a cyclic number.

It is not a de Polignac number, because 212554057 - 2²⁷ = 78336329 is a prime.

It is not a weakly prime, because it can be changed into another prime (212554037) 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, 106277028 + 106277029.

It is an arithmetic number, because the mean of its divisors is an integer number (106277029).

Almost surely, 2^212554057 is an apocalyptic number.

It is an amenable number.

212554057 is a deficient number, since it is larger than the sum of its proper divisors (1).

212554057 is an equidigital number, since it uses as much as digits as its factorization.

212554057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 212554057 is about 14579.2337590149. The cubic root of 212554057 is about 596.7921925527.

The spelling of 212554057 in words is "two hundred twelve million, five hundred fifty-four thousand, fifty-seven".