213571027 has 2 divisors, whose sum is σ = 213571028. Its totient is φ = 213571026.

The previous prime is 213571021. The next prime is 213571069. The reversal of 213571027 is 720175312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213571027 - 2¹⁹ = 213046739 is a prime.

It is a super-5 number, since 5×213571027⁵ (a number of 43 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 213570986 and 213571004.

It is not a weakly prime, because it can be changed into another prime (213571021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106785513 + 106785514.

It is an arithmetic number, because the mean of its divisors is an integer number (106785514).

Almost surely, 2^213571027 is an apocalyptic number.

213571027 is a deficient number, since it is larger than the sum of its proper divisors (1).

213571027 is an equidigital number, since it uses as much as digits as its factorization.

213571027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 213571027 is about 14614.0694879968. The cubic root of 213571027 is about 597.7424674907.

The spelling of 213571027 in words is "two hundred thirteen million, five hundred seventy-one thousand, twenty-seven".