212585423 has 2 divisors, whose sum is σ = 212585424. Its totient is φ = 212585422.

The previous prime is 212585413. The next prime is 212585441. The reversal of 212585423 is 324585212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212585423 - 2¹⁴ = 212569039 is a prime.

It is equal to p_11736347 and since 212585423 and 11736347 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212585423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212585413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106292711 + 106292712.

It is an arithmetic number, because the mean of its divisors is an integer number (106292712).

Almost surely, 2^212585423 is an apocalyptic number.

212585423 is a deficient number, since it is larger than the sum of its proper divisors (1).

212585423 is an equidigital number, since it uses as much as digits as its factorization.

212585423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 32.

The square root of 212585423 is about 14580.3094274436. The cubic root of 212585423 is about 596.8215467532.

The spelling of 212585423 in words is "two hundred twelve million, five hundred eighty-five thousand, four hundred twenty-three".