212670193 has 2 divisors, whose sum is σ = 212670194. Its totient is φ = 212670192.

The previous prime is 212670163. The next prime is 212670229. The reversal of 212670193 is 391076212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151954929 + 60715264 = 12327^2 + 7792^2 .

It is a cyclic number.

It is not a de Polignac number, because 212670193 - 2¹³ = 212662001 is a prime.

It is a super-2 number, since 2×212670193² = 90457221981314498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212670103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106335096 + 106335097.

It is an arithmetic number, because the mean of its divisors is an integer number (106335097).

Almost surely, 2^212670193 is an apocalyptic number.

It is an amenable number.

212670193 is a deficient number, since it is larger than the sum of its proper divisors (1).

212670193 is an equidigital number, since it uses as much as digits as its factorization.

212670193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 212670193 is about 14583.2161404815. The cubic root of 212670193 is about 596.9008652041.

The spelling of 212670193 in words is "two hundred twelve million, six hundred seventy thousand, one hundred ninety-three".