212511463 has 2 divisors, whose sum is σ = 212511464. Its totient is φ = 212511462.

The previous prime is 212511437. The next prime is 212511469. The reversal of 212511463 is 364115212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212511463 - 2¹⁷ = 212380391 is a prime.

It is a super-2 number, since 2×212511463² = 90322243812800738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212511469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106255731 + 106255732.

It is an arithmetic number, because the mean of its divisors is an integer number (106255732).

Almost surely, 2^212511463 is an apocalyptic number.

212511463 is a deficient number, since it is larger than the sum of its proper divisors (1).

212511463 is an equidigital number, since it uses as much as digits as its factorization.

212511463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 212511463 is about 14577.7729094673. The cubic root of 212511463 is about 596.7523258867.

Adding to 212511463 its reverse (364115212), we get a palindrome (576626675).

The spelling of 212511463 in words is "two hundred twelve million, five hundred eleven thousand, four hundred sixty-three".